Comparing drafting Tim Tebow to the potential of the Indianapolis Colts drafting Andrew Luck,when Tebow was drafted in the first round of the draft(even though he was a late first round pick),I remember the critics & talking heads criticizing the pick & saying that the Broncos had to start Tim Tebow because they drafted him so highly. They couldn't just have him sit on the bench & learn because he was such a high draft pick. Now if the Colts have the overall first pick,& Andrew Luck comes out of college to enter the draft,AND the Colts draft him,you'll hear the critics & talking heads do a complete 180 & talk about how brilliant the draft pick was,how Luck will sit & learn from Peyton Manning,& they'll compare it to Aaron Rodgers & Brett Favre. You won't hear a single critic(Merrill Hoge,Trent Dilfer,etc.) say that because he was drafted so highly,he has to start immediately(unless he is drafted by the Dolphins & then that goes without saying).
Thats because they have a STUD at QB already.
Most highly regarded QB's come into the league to a team that is crap and they need to play them, those that go to better teams have time to learn behind the established QB.
Luck would sit and learn from Manning, much like Farve and Rodgers.
Roethlisberger came in and did not start either while going to a good team, he ended up starting because of injury though.