Kansas City Chiefs
Best-case scenario: Charles is the second coming of Eric Dickerson, and Cassel's rib injury opens up an opportunity for Tyler Palko to emerge in the same way that Drew Bledsoe's sheared chest gave Tom Brady a chance. Palkomania sweeps the AFC West.
Worst-case scenario: Cassel's never healthy, and his interception rate spikes back up after last year's ridiculous 1.6 percent rate. The team starts 0-5 before its bye and then quits on Haley, who gets canned by the end of the year.