Exactly how does that sound like Sparano? Tony Sparano is probably the most unsure of himself head coach I have ever seen. It's almost like he would tell you what he believes, but the way he comes across, you aren't convinced that he actually believes in it. That stuff gets picked up on by the players, and I think you can tell that this team's players are very unsure of themselves in crunch time.
Mike Zimmer is a very confident coach who knows what he is trying to accomplish. Another difference is that Zimmer is a tremendous coach schematically. He can game plan with the best of them, which was clearly a weakness on Tony Sparano's part.