Cassel was actually worse than Sanchez last year. Cassel was ranked 32nd in QB rating while Sanchez was 31st (66.9 vs. 66.7).
Sanchez is significantly better than Matt Cassel. Alway has, always will be. Thank God Tanny didn't trade a 1st round pick for this overrated loser in 2009 like some of the clowns on this board were screaming for (Patsfantx).