Our DT of the future already on the roster?

With Hampton losing a step and now out with an ACL, we're in serious trouble at the NT position. McLendon did a yeoman's job this year, but the Denver game proved he can't stand up to the point of attack. I'm wondering - is Ziggy Hood a possibility here? If he puts on 15-20 pounds, he'd be big enough at 6-3, 320 to hold up. He's massively strong and played DT in college (in a 4-3, though). I've always thought Ziggy might be able to move inside - why not bulk him up and put Keisel and Heyward on the outside while the Big Zig takes up space in the middle?