Where have you gone, Joe Montana and Steve Young?

Diehard 49ers fan here.  Suffering with our inability to remain competitive.  Monday night's game with the Cardinals was an improvement in many areas, but I think we are kidding ourselves if we think J.T. O'Sullivan or Shaun Hill can make us relevant again.  Nothing against those two men.  Both could be better than average quarterbacks, but I think in an offensive era such as the one we are in, we NEED a different QB.  I am not sure what the York's plans are, but I think the one glaring need we have is at the QB position.  I think a good opportunity would be Matt Leinart, if he becomes available, or one of the Cleveland quarterbacks.  I have a hard time believing that Cleveland will continue to pour that much money into a backup QB, whoever that might be.  I have thought about drafting a QB because unfortunately, we will be in a position to have a shot at some of the upper tier QBs in the draft coming up, but I am hesitant after the Alex Smith experiment.  I'd love to hear your thoughts and comments on this topic!