Al Fronzak mock has Barkley to the Bills:
8. Buffalo Bills - QB Matt Barkley (USC)...The Bills number one priority is to find a potential franchise QB in this draft...they can't gamble that the QB they are targeting will still be available in the second round, since several other teams are looking to draft a young QB...*Note - The Bills are also said to be high on FSU QB EJ Manuel, Syracuse QB Ryan Nassib and Arkansas QB Tyler Wilson as both GM Buddy Nix and Asst. GM Doug Whaley were both present at Wilson's pro day workout in Fayettville.
Team Needs- QB, WR, TE, ILB, OLB, CB; Offense - West Coast up-tempo, Zone blocking. Defense- 3-4 hybrid, press man coverage
http://www.eastcoastsportsnews.com/AlFronczak_2013_Mock_Draft.html
And I found this tidbit...from former Oregon coach Chip Kelly about playing Luck and Barkley in 2011
"I also qualified that and said I'm not saying he's better than Andrew Luck. I'm not saying Andrew Luck is better than him. In the game against the Ducks, the best quarterback performance in the 11 games we've played was Matt Barkley." - Chip Kelly
http://latimesblogs.latimes.com/sports_blog/2011/11/oregon-coach-says-matt-barkley-is-better-than-andrew-luck-in-one-respect.html