The center is usually the smallest and shortest guy on the o-line. You won't see a big mammoth guy like Ciron Black as a center. Centers need to be a little more compact in their build so they can get into their block off the snap easier. Most of the time the center either snaps then stays low and gets under the pads of the tackle/nose guard and drives, or does some type of cut block. They also spend a lot of time double teaming if it's an elite tackle. Most of big Dorsey's double teams were by a Center/Guard combo. Josh played O-Line his sophomore year and was an all-stater there. He's listed at 6'2, which he might actually be, but probably more like 6'0 1/2, maybe 6'1. At 270 lbs., and probably not getting too much bulkier, he'd be a good candidate for a switch to center. His height keeps him from playing a tackle spot, and he's too quick to stick at guard...plus he'd need to add about 30-50 lbs. to be effective at guard, whereas 10-15 more lbs. he'll be ready to play defensive tackle the way LSU likes to use their tackles. What is up with Ken Aubrey (Bastrop, 2006 4-star) now? He should be a redshirt freshman this year. I've only seen him in garbage time this year...and since there hasn't been much garbage time lately, haven't seen him at all.
Centers have to have quick feet and quick minds. They are often the uncovered lineman against a even front and have to be able to pick up stunts and blitzes and avoid trap blocks. Above all, they have to be able to get the ball consistently to the quarterback in the pro-set hike or the shotgun snap. They don't need the height for leverage that tackles need out on the end, so shorter linemen are often routed to center. However we have had some tall centers that could pull like guards and really get into the running game.