That picture above explains it all i think ur on your own on this one buddy, sure Peek is a very good pass rusher and all, but there is no way you bench Babin for Peek Babin leads the texans with Hurries on the quaterback, and for christ sake he jacked up Antoin Smith i think it was in that picture up there.
If Anything I think we should try Peek as a DE, Gary Walker is good but he's getting old and i don't beleive he has a sack on the season. He is good at stopping the run however but i think Peek would be a beasts at RE as far as pass rushing goes, he could be like Jevon Kearse. The only thing that i see would keep him from making that change would be stopping the run, but even if thats the case he could come in on Dime or maybe Nickel packages.
Until then he'll just be an above average backup.
These are just my thoughts on the situation, feel free to protest.