Of course Don Brown would only say positive things even if he had a negative opinion, but Don Brown said he has been impressed with Shea Patterson. Brown notes that Shea is a very gifted athlete and has earned everyone's respect with how he handles himself and takes his role seriously. Brown implied that we need to let Patterson play to his talents and ability; "let him player."
Jay Harbaugh says that Patterson has improved a lot since the spring in terms of knowing our formations and plays.
Detroit News -> Link.