I guess that's kind of the point though. You can go OT - C with your first two picks and not have to guess whether or not Barton can play C.
If you go Fuaga/Van Pran, there's a lot more certainty that you can get one of them to play G, but you know you have a C. I just don't like Dallas "projecting" a C if they don't end up bringing back Biadasz. They're too good of a team to mess around like that.
And again, I really like Barton, but if there's a need at T and C, then just get those guys. That's not true every year, but this year it is.