Here is a scenario I'll bet noboday has considered. Bills get number one overall pick and Andrew Luck on advice from his father and other advisors decisdes to stay in school another year. Nix does not like Locker or Mallett enough or maybe at all to take with that number one and he goes with best available player like he did with C.J. Spiller last year.
Depending on how the Bills grade out the top players minus Andrew Luck, it just turn out that A.J. Green is the BPA on their board and what if he is far enough ahead of the best defensive players such as Rober Quinn and Marcell Dareus? Does Nix take Green and give us a great WR when it appears we have decent WR's with Evans and a nice developing Stevie Johnson?