Why not former FCC Chair Reed Hundt for Commerce Secretary? He's got the chops on all the key Commerce Department issues: trade, Census, broadband, stimulus. He's got better politics than anyone else you're going to get for the job. And he was part of the transition team. Also, not to be overlooked: he's a Democrat, so he might actually pursue sensible policies.

Late Update: Jon Taplin says it should be Eric Schmidt of Google. But having the head of Google get access to all the Commerce Dept. data and then make a widget out of it. Don't know about that.