I think Quinn can still be a good quarterback in a Pittsburgh-style offense. Pound the ball with the run, defense keeping the other team off the board, and Quinn just making the smart/safe plays to keep the team in the game and have a chance to win in the 4th quarter. Like I said a couple times yesterday though, these current Browns don't have any of that.
DA isn't any kind of long-term answer, but he's a better placeholder on a bad team. More upside (big plays). Equal downside (losing games).