I can't see why so many folks consider Tebow to be such a huge gamble. It's not like he doesn't bring anything to the table. In HS he threw for roughly 10,000 yards and 100 TDs. At Florida he completed 661 passes out of 985 attempts (67.1 completion %) for 9,256 yards and 88 TDs for a QB rating of 176.1. He's 6'3, weighs about 250, runs a 4.71 40 and has a 38" vertical. He's also a winner, a leader and very coachable.
Seems to me that a good QB guru worth his salt could do something with all that to work with.