It's one thing to slide from Tackle to Guard or Guard to Center, but to go from playing Right Tackle to Center is not normal. Most RT's play out there for a reason, and it's not cause they're amazing blockers. You're suppose to block inside-out, and taking a guy who plays only a little, and moving him to where there's a bunch of action just doesn't seem to me like the best idea. I will agree with you that he's probably better than most give him credit for, but he's not that good IMO to where he can make that big a move. Remember, Amano went from Guard to Center and struggled mightily wit that transition. Not saying Otto sucks like that, but I'd rather not find out.