Mike Shanahan won't take Ryan Mallett. I'm pretty comfortable going on record with that one. It's just not in Shanahan's history, and he does have a pretty established history now of the kinds of quarterbacks he likes. Shanahan would love Cam Newton, Blaine Gabbert, maybe Jake Locker, maybe even Christian Ponder, but not Ryan Mallett. He likes a guy with a combination of good feet and a big arm. Mallett only has one of those. What you need to be able to do is Shanahan's offense is run the bootleg, and also to be able to sprint out on hand-offs to exchange points that are stretched a little further out than many other offenses would do it. That's a key to Shanahan's zone-based ground game. It's why John Elway was his archetype. It's why when he had the chance he traded for Jake Plummer in Denver, and then drafted Jay Cutler, and then traded for Donovan McNabb in Washington.