I think Redick can definitely stick in the pros, but he's not going to score anything like what he did in college. The thing that he has going for himself more than anything else is actually how hard he works. I know he's a great shooter...but he's going to have to work hard to master the game at the NBA level if he wants to see the court for real.
At 6'4" and a spot up shooter, he wouldn't be a terrible fit for the triangle. If he works hard, he could be a Jon Barry-type player.