Waldman's top 20 QB's chosen 2006-11, based on their upside:
20. Greg McElroy
19. Matt Leinart, USC
18. Bruce Gradowski, Toledo
17. Adam Froman, Louisville
16. Kevin Kolb, Houston
15. John Beck, BYU
14. Vince Young, Texas
13. Jake Locker, Washington
12. Christian Ponder, FSU
11. Blaine...