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If the NCAA Tournament started today, I think, the four No. 1 seeds would be Kansas, Villanova, Gonzaga and North Carolina. Those are the top four schools in the CBS Sports Top 25 (and one) and where we’re at less than a week away from Selection Sunday. But if any of those teams slip in their conference tournaments, don’t be surprised if a Pac-12 school - either UCLA, Oregon or Arizona - jumps to the top line after winning a Pac-12 Tournament title.

UCLA, Oregon and Arizona are fifth, sixth and seventh in the Top 25 (and one). In other words, they’re all in a position to be a No. 1 seed or, at least, be the No. 2 seed in the West Regional opposite Gonzaga. Kentucky, Baylor and Louisville round out the top 10 of the Top 25 (and one).

The complete Top 25 (and one) is below.

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1 Kansas The Jayhawks won the Big 12 by four games. They'll take an eight-game winning streak into the Big 12 Tournament. -- 23-11
2 Villanova The Wildcats have won nine of their past 10 games. The won their fourth straight Big East championship. -- 18-16
3 Gonzaga The Zags' 30-1 record features five wins over schools also ranked in the Top 25 (and one). They're two more wins away from earning a likely No. 1 seed in the NCAA Tournament. -- 27-8
4 N. Carolina The Tar Heels are the outright ACC champions for the second straight year. They have five wins over schools also ranked in the Top 25 (and one). -- 29-8
5 UCLA The Bruins will take a nine-game winning streak into the Pac-12 Tournament. Their resume features road victories at Arizona and Kentucky. -- 16-17
6 Oregon The Ducks have won six straight games since losing at UCLA. They're 4-2 against top-50 RPI teams. -- 24-12
7 Arizona The Wildcats have only lost twice with Allonzo Trier in the lineup. They're 4-4 against top-50 RPI teams. -- 27-9
8 Kentucky The Wildcats closed the regular season on an eight-game winning streak. UK has won five of the past eight SEC titles. -- 23-10
9 Baylor The Bears have never won more games in the regular season than they won this season. Their 25-6 record features nine top-50 RPI wins and just two sub-30 losses. -- 24-11
10 Louisville The Cardinals finished tied for second in the ACC. Their resume features seven top-50 RPI wins and zero sub-40 losses. -- 8-24
11 Duke The Blue Devils finished the regular season with 10 top-50 RPI wins. They're 20-5 with Mike Krzyzewski on the sideline. -- 27-9
12 Florida St. The Seminoles' resume features 10 top-50 RPI wins and only four sub-25 losses.They finished tied for second in the ACC standings. -- 17-16
13 West Virginia The Mountaineers closed the regular season by winning four of their final five games. They will be the No. 2 seed in the Big 12 Tournament. -- 9-23
14 Purdue Caleb Swanigan's 25th double-double helped Purdue win at Northwestern on Sunday and secure the Big Ten title by two games. The Boilermakers have eight top-60 RPI wins. -- 34-5
15 Butler The Bulldogs have 10 top-50 RPI wins but seven losses to schools unranked in the Top 25 (and one). That gives them the nation's most inconsistent resume. -- 18-15
16 Notre Dame The Irish have won six of their past seven games. They finished tied for second in the ACC standings. -- 13-20
17 SMU The Mustangs will take a 13-game winning streak into the AAC Tournament. They're the outright AAC champions for the second time in the past three years. -- 20-13
18 Saint Mary's The Gaels' resume features two top-35 RPI wins and only one sub-10 loss. Two of their three losses are to Gonzaga. -- 26-8
19 Florida The Gators dropped two of their final three regular-season games. They still finished alone in second of the SEC standings. -- 24-12
20 Cincinnati The Bearcats finished the regular season with five top-50 RPI wins and just one sub-45 loss. They finished alone in second in the AAC standings. -- 22-15
21 Virginia The Cavaliers closed the regular season with three straight wins. They have six top-50 RPI victories and zero sub-80 losses. -- 23-11
22 Iowa St. The Cyclones closed the regular season by winning six of their final seven games. Their resume features five top-40 RPI wins and just three sub-50 losses. -- 29-8
23 Okla. St. The Cowboys closed the regular season by winning 10 of their final 13 games. Nine of their 11 losses are to teams also ranked in the Top 25 (and one). -- 12-20
24 Wichita St. The Shockers beat Illinois State 71-51 in the MVC Tournament title game. They'll take a 15-game winning streak into the NCAA Tournament. -- 15-19
25 Wisconsin The Badgers snapped their three-game losing streak Sunday with a 66-49 win over Minnesota. Their resume features six top-60 RPI wins and zero sub-80 losses. NR 22-14
26 Maryland The Terrapins' resume features five top-50 RPI wins and zero sub-100 losses. They finished 12-6 in the Big Ten. -- 16-17