First of all, in history there's been some. 2nd, I didn't say each individually. Be a baby about my choice of words but I don't care. College football has had plenty and BYU has been successful with 6'0 centers. 6' is not that big of a deal. If you can play, you can play.
There are at least 3 or 4 big name schools with 285 lb centers this year.

I'd give you a pat on the back for taking the time to go through every NFL team... but it was a waste of your time