The Cheifs added Romeo Crennel?

Along with Charlie Weis as the D and O coordinators and Scott Pioli in the front office. This is the setup that the Pats had when they won thier 3 rings. IF, and I realize this is a big 'if', but if those three can build a championship team in the next year or two, would that taint Belichek's legacy as a great coach? I realize he's good, but a lot of people talk about as being one of the all time great's based on large part on those three rings in 4 years. If Weis, Crennel and Pioli can put together a winner in KC, doesn't that take away from what Belichek did? Especially considering that he hasn't done a whole since then.