His play got worse as soon as they instituted that BS horsecollar rule. Roy Williams, throughout his career (dating back to college) made himself valuable by being able to recover from his mistakes by catching people from behind.
His signature tackle was taken away, and in addition, his speed is not what it was coming out of college. The guy is a liability on the field, and he has been, even dating back to when Zimmer was here.
Maybe a change of scenery will be what he needs. Time will tell. I don't think you will be happy with this signing though. You will learn to really hate the horsecollar rule though
All I do know is the guy had little to no support from his teammates in Dallas, and there has to be a reason for that.
Roy Williams is a guy that would run his mouth in celebration after a win, and leave early from the lockerroom after a loss, leaving his teammates to face the cameras.