Tom Brady did not look as comfortable in the pocket when he returned from his torn ACL. Brady wasn't as accurate either, because his mechanics were a little off for much of the 2009 season. Griffin was the best rookie quarterback in a sensational group last year, but there's no guarantee he'll return as the same player. We'll also be interested to see how Shanahan changes the Redskins' offense and to what degree he will have Griffin on the run early in the season.