His former coach, Steve Mariucci, said Sunday that Williams has "got to get with it" on the NFL Network during its Hall of Fame pregame show. Mariucci, who was fired from the Lions late last season, is an analyst for the network."Some rookies become professionals a little sooner than others," Mariucci said Sunday. "Just because you sign a contract, it doesn't make you a pro ... you've got to learn how to do it. And Mike has to learn that, he has to learn how to practice, how to be available ... and do what's asked of him. And they're going to give it a good shot. But they're counting on him because he was such a high draft choice."