How do we gauge the 2012 draft pick as being a successful draft pick? at least 20pts a game and 10 asts (if a guard/forward) or 10 rebs (if a PF/C)

Should we expect the pick to be productive right out the gate, or give him at least a season to adjust?

How many minutes should we expect him to play?

If he turns out to be a dud, how do the Raptors move forward?