Should the Yankees move Ivan Nova out of the rotation?

I was hoping Nova could prove me wrong but he has no minor league resume until last year. He was a marginal prospect at best and now he's in the rotation for the best team in the history of baseball. He couldn't work deep into games. He's basically another Jeff Karstens except the Yankees are counting on him to do much more than Karstens. I think they should bring up Kevin Millwood as soon as he's ready. Hopefully Hughes figures it out and they can choose 2 out of the 3 out of Freddy Garcia, Bartolo Colon, and Millwood. Nova is not the answer. I rather they start Joba Chamberlain.