However, for middle relievers, it's not quite so obvious. That's why it was a small surprise to see Tampa Bay's Grant Balfour turn down arbitration from the Rays.
"I'll take my chances on what I've done the past few years," Balfour told the St. Petersburg Times ' Marc Topkin . "I believe there's a multi-year deal out there for me."
Some teams are reluctant to give up a draft pick in order to sign a middle reliever that's a Type A free agent.
Balfour, who will be 23 in December, has appeared in 203 games with the Rays since joining them from Milwaukee in 2007. With the Rays he's gone 14-7 with a 3.33 ERA. Last season he was 2-1 with a 2.28 ERA in 57 games, striking out 56 while walking 17 in 55 1/3 innings.
Keep up with all the arbitration decisions here .
-- C. Trent RosecransFor more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed.