Ok a little spin to this. Your center is the man who makes the line calls. There are very few that can make the correct calls that will prevent Peyton Manning from looking like John Beck. While a good corner prevents the bomb touchdown, a good center keeps the line blocking the right guys so there is a run game, and pass protection. The gap between a decent and great center is a canyon, while the gap between a decent and great CB is less noticable.
A Corner can only do his job if the guys in front of him do their jobs, or he will eventually fail. Where a center is responsible for making sure his team is ready to execute. IMO, a pro bowl center is far more valuable than a pro bowl corner. So, I would rather have a Kent Hull over a Nate Odomes.