What I don't like about this is...
He was apparently running a 4-3/3-4 hybrid no? Like Mecca said, he had oodles of talent, and not the greatest results.
Wisenhunt is a Pittsburgh guy. That means something, and even though he was an offensive coach, I'm sure defense is a big deal to him. He had to have learned a lot in Pittsburgh. He should know how important defense is, and not just defense, but the 3-4 defense.
Well anyway, if Wisenhunt never trusted Pendergast to do the job, gave him a chance(forced to really), and still fired him. Well, lets just say it doesn't say a whole lot of good about our new D coordinator.