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Losing in Week 1 isn't fun. Nobody wants to start 0-1, especially when players you were counting on struggled. But please don't panic and do something you'll regret.

For example, as good as Marcus Mariota looked in the season opener, and as bad as Peyton Manning played, it doesn't mean you have to swap quarterbacks. The same goes for Bishop Sankey and Adrian Peterson at running back, Travis Benjamin and Odell Beckham at receiver and Darren Fells and Greg Olsen at tight end. We can go on and on with other examples.

Here was the Week 1 all-dud team: QB -- Manning (five Fantasy points) RB -- Peterson (five points) and C.J. Anderson (three points) WR -- Beckham (four points) and Calvin Johnson (three points) TE -- Olsen (one point) and FLEX -- Justin Forsett (five points).

It was bad for those players, who were all drafted in the first two rounds in CBSSports leagues based on Average Draft Position. To put it in perspective, there were 22 kickers who scored at least six Fantasy points in a standard league in Week 1.

If there was a positive with those players it's that they avoided a significant injury. The same can't be said for Andre Ellington (knee), Dez Bryant (foot), T.Y. Hilton (knee), DeSean Jackson (hamstring) and Delanie Walker (hand), who could be facing multi-week absences. Anderson (toe) and Demaryius Thomas (hand) were also injured in Week 1, but they are expected to play this week.

It's unlikely you'll find a quality replacement for someone like Bryant off the waiver wire, but there are players available who could be impactful for your roster. The top three free agents to add this week are Tyler Eifert, Danny Woodhead and Mariota.

Now, you may have other needs -- Donte Moncrief, Steve Johnson and James Jones could help at receiver, and Chris Johnson (yes, that one) could help replace Ellington -- but Eifert, Woodhead and Mariota have the most long-term potential. It's a little shocking that Eifert and Woodhead weren't drafted in every league, and Mariota could emerge as a weekly starter at quarterback.

For more waiver wire gems, check out Playing the Waiver Wire each week to help you improve your roster. Our goal is to help you avoid going 0-2 if you struggled in Week 1.

Quarterbacks

Injuries: Derek Carr (hand) and Josh McCown (concussion)
Priority list (add them in this order): Marcus Mariota (42 percent ownership), Andy Dalton (53 percent), Alex Smith (39 percent) and Tyrod Taylor (25 percent)
Potential drop candidates: Joe Flacco (84 percent), Teddy Bridgewater (79 percent) and Jay Cutler (77 percent)
Why Mariota is the best: It's not always going to be this easy for Mariota. His 32-point performance in Week 1 was enhanced by Tampa Bay's bad defense. But he looks legit and passes the eyeball test. And he's elevating the talent around him like Kendall Wright and Sankey. If you have an open roster spot and can carry two quarterbacks then definitely add Mariota. And, as shocking as this might sound, if someone like Manning continues to struggle in a few weeks then you can make the switch to Mariota if he continues to play well.
Of note: The more I thought about Dalton this offseason the more I started to like him as a Fantasy option this year. Yes, he's going to be inconsistent, especially in prime-time matchups, but it's hard not to like A.J. Green and Eifert and avoid Dalton having good stats. Like Mariota, if you want to speculate on a backup quarterback with an open roster spot then give Dalton an extended look. ... Smith, like Dalton, is also inconsistent, but he will likely hang around the Top 12 in Fantasy quarterbacks this year, especially if an injury occurs or top-end guys struggle. He got off to a great start in Week 1 with 28 Fantasy points and he's worth keeping an eye on once the bye weeks hit. ... Taylor played well in his first NFL start against the Colts with 17 Fantasy points and he has a great matchup in Week 2 against the Patriots. If he continues to play well he'll have plenty of value as a bye-week replacement or possibly more.

Running backs

Injuries: C.J. Anderson (toe), Andre Ellington (knee) and Reggie Bush (calf)
Priority list (add them in this order): Danny Woodhead (60 percent ownership), Chris Johnson (19 percent), David Johnson (40 percent), DeAngelo Williams (60 percent), Ronnie Hillman (60 percent), Dion Lewis (6 percent), Christine Michael (32 percent), Robert Turbin (4 percent), Lance Dunbar (12 percent) and Benny Cunningham (21 percent)
Potential drop candidates: Alfred Blue (90 percent), Reggie Bush (74 percent) and Charles Sims (71 percent)
Why Woodhead is the best: We were high on Woodhead coming into the season and he lived up to the hype in Week 1 against Detroit with 18 Fantasy points. He had one less touch than Melvin Gordon (17 to 16), but Woodhead is better in the passing game and also worked in the red zone with two touchdowns. He'll continue to be a significant factor for the Chargers and Fantasy owners should definitely buy in for all formats.
Of note: It's doubtful Ellington will play in Week 2 at Chicago, but he could return in Week 3. Coach Bruce Arians has said Chris Johnson will be the lead rusher ahead of David Johnson, but both running backs should get work. I still like David Johnson more long-term but Chris Johnson should be added first this week. He had 10 touches to one for David Johnson, although his lone touch was a 55-yard touchdown catch against the Saints. ... If you need a one-week alternative then look at Williams and Cunningham, in that order. Both played well in Week 1 as replacement options (Williams for the Steelers and Cunningham for the Rams) and could be useful this week. Williams will start against the 49ers and has the potential to be a Fantasy starter while Cunningham could be a flex option at Washington if Tre Mason (thigh) and Todd Gurley (knee) remain out. ... Hillman is a stash candidate in all leagues in case Anderson ever misses extended time, and with Anderson banged up now you should add Hillman where available. ... PPR owners need to pay attention to Lewis and Dunbar. The Patriots will use Lewis in the Shane Vereen role and he had four catches for 51 yards in Week 1 against the Steelers. He won't get as much work running the ball (15 carries for 69 yards) with LeGarrette Blount now off suspension. And Dunbar had eight catches for 70 yards against the Giants, and his role could expand with Bryant out. ... If you want to speculate on a running back or two then look at Michael and Turbin. The Cowboys had a solid debut from Joseph Randle, but Michael could still be an option down the road. And the Browns have a miserable backfield, but Turbin could be the answer when his ankle is healed in a few weeks.

Wide receivers

Injuries: Dez Bryant (foot), Demaryius Thomas (hand), T.Y. Hilton (knee) and DeSean Jackson (hamstring)
Priority list (add them in this order): Donte Moncrief (16 percent ownership), Steve Johnson (39 percent), James Jones (36 percent), Brandon Coleman (32 percent), Phillip Dorsett (22 percent), Cole Beasley (9 percent), Allen Hurns (18 percent), Nate Washington (3 percent) and Rishard Matthews (0 percent)
Potential drop candidates: Marques Colston (89 percent), Victor Cruz (79 percent) and Eddie Royal (72 percent)
Why Moncrief is the best: It's going to be interesting to see what the Colts do to replace Hilton. Moncrief played as the No. 3 receiver for the Colts in Week 1 behind Hilton and Andre Johnson, but Dorsett could start with Hilton out. We'd still look at Moncrief first since he had 11 targets against the Bills and played well with six catches for 46 yards and a touchdown. The Jets will likely use Darrelle Revis on Johnson this week, which could free up Moncrief. But don't be surprised if the Colts use more two-tight end sets in this matchup, which could help Coby Fleener.
Of note: Owners in shallow leagues might have the option of the following players off waivers in Kendall Wright (79 percent), Terrance Williams (77 percent) and Pierre Garcon (71 percent). Wright and Williams would be huge priorities where available because Wright should thrive with Mariota, and Williams gets a huge boost with Bryant out. Garcon also benefits with Jackson out. ... The Chargers are without Antonio Gates for three more games, and Johnson looks like the biggest beneficiary. He had six catches for 82 yards and a touchdown on six targets against the Lions, and Philip Rivers is using him as the No. 2 receiver behind Keenan Allen. ... Jones looked like he never left Aaron Rodgers with four catches for 51 yards and two touchdowns against the Bears, but he had just four targets. By comparison, Davante Adams had eight targets, and Randall Cobb had five. It's a great idea to add Jones, who could be a red-zone threat for the Packers (he had 14 touchdowns in 2012), but don't expect him to be a regular starter for your Fantasy team right away. ... Coleman was tied with Colston for second in targets among receivers with seven, which was one behind Brandin Cooks. He finished with four catches for 41 yards and a touchdown against the Cardinals and is worth adding if you want to speculate on a receiver. ... Beasley should see an uptick in targets with Bryant out, and he had four catches for 49 yards on six targets against the Giants. Owners in PPR leagues should look at Beasley as a No. 3 receiver until Bryant returns. ... Three receivers who appear to be heavily involved with their respective teams are Hurns (Jacksonville), Matthews (Dolphins) and Washington (Texans). None are must-add receivers now, but owners in deeper leagues could look at them if you're stuck with Bryant, Hilton or Jackson out.

Tight ends

Injuries: Delanie Walker (hand)
Priority list (add them in this order): Tyler Eifert (58 percent ownership), Austin Seferian-Jenkins (43 percent), Jordan Reed (35 percent), Eric Ebron (20 percent) and Ladarius Green (15 percent)
Potential drop candidates: Julius Thomas (85 percent), Owen Daniels (73 percent) and Antonio Gates (71 percent)
Why Eifert is the best: I was expecting big things for Eifert this season, and he was the tight end I targeted in every league if I missed on one of the elite options. I didn't expect him to become an elite tight end after Week 1, but he definitely looked the part. He had nine catches for 104 yards and two touchdowns against the Raiders on a team-high 12 targets, and hopefully this is a sign of things to come. He is worth adding in all leagues and starting until he proves otherwise.
Of note: Fleener and Miller are tight ends to target in shallow leagues as well, but they are short-term options. Fleener could benefit with Hilton out if the Colts use more two-tight end sets, and Miller should see a hefty amount of targets until Martavis Bryant (suspension) returns. But you should still prioritize Seferian-Jenkins and Reed first. ... Seferian-Jenkins was the lone bright spot for the Buccaneers in Week 1 with five catches for 110 yards and two touchdowns on seven targets against the Titans. Mike Evans (hamstring) didn't play, which helped, but he's poised to play a bigger role this year and is worth adding in all leagues. ... Reed had a great season opener against the Dolphins with seven catches for 63 yards and a touchdown on 11 targets, and he should see an increased role with Jackson out. He has a tough matchup in Week 2 against the Rams, but he could be a big factor for Fantasy owners if he can stay healthy this season. ... Ebron had four catches for 53 yards and a touchdown on five targets against the Chargers, and we'll see if this is a sign of things to come. He did have one more target than Calvin Johnson, which likely won't happen again, but he's a good tight end to speculate on if you miss on Eifert, Seferian-Jenkins or Reed. ... Green did a nice job against the Lions with five catches for 74 yards and a touchdown on six targets, but his time in the spotlight is limited with Gates back in three games. Still, for a short-term solution at tight end, Green can be a solid addition.

DST streamers

Bengals (vs. SD): 57 percent
Titans (at CLE): 19 percent
Saints (vs. TB): 11 percent

K streamers

Graham Gano (vs. HOU): 17 percent
Mike Nugent (vs. SD): 15 percent
Zach Hocker (vs. TB): 4 percent