BIO: Three-year starter used at both guard positions and right tackle.
POSITIVES: Hard-working overachiever with limited upside for the next level. Smart, works well with teammates and keeps his head on a swivel. Makes effective use of blocking angles, body positioning and seals defenders from the action. Stays square and effectively fights with his hands.
NEGATIVES: Lacks footwork in space, not explosive at the point and rarely finishes blocks.
ANALYSIS: Getting the most from his abilities, Butler is a tough prospect with limited athletic skills. Could catch on as an inexpensive utility lineman.