Don't know about this Jeanne guy but if he's a center why would you pick him #1 to be a backup? We need to get a potential starter.
There are probably 4-6 starter quality players available in most drafts after 20. Sure you want to get them, but no one can predict the future. And just because we might target Jeane to back-up Rudy, we don't know he does not evolve into a starter.