Bielema imho.
Hard to believe they're only one game away against Mich St from being undefeated. (Caught a lot of bad breaks in that one). They kind of came out of nowhere.
Although Chizik would be a close second because of the way he got his team to tune out the Cam Newton distraction and go undefeated (so far) throughout the SEC. What Beamer has done is nothing short of impressive as well, but it's hard to give it to him when they lost to James freaking Madison at home.