Buffalo's ILB battle

Given that the Buffalo Bills are moving to a new defensive system under DC Mike Pettine this fall, there was going to be a shift in personnel regardless, but the team's trade of 2012 starting MLB Kelvin Sheppard (in exchange for OLB Jerry Hughes) means that one of the biggest questions for the team as they prepare to begin training camp is determining the identity of their starters at ILB.