Well they (Broncos) must expect something like that scenario to happen. Otherwise they wouldnt have put all those clauses for in his contract.
It was actually Manning who put them in there, not the Broncos. Manning's agent came out and said that when he first started talking to all the teams. He would put the performance clauses in there that would require him to go through the same physicals he just went through every year and if he failed wouldn't be owed. Only 2 of the 5 years are guaranteed money after the physical, the rest is performance based. He feels that he can still dominate and is one of the best players in the NFL, if that's true he should get paid for it, if not....to risk to the team. I admire that.
People act like the Dr's are lying when they pass his physical, and say he's good to go. Why would a team risk anything by letting a Dr. lie? Manning, during his career has been hit less than any other QB in history, look it up. It's because he gets rid of the ball so fast. It's not like the Colts always had an extrodinary line, they had a lot of injuries over the years. The Broncos are looking to sign Jeff Saturday, and a big name at left guard, plus Dallas Clark and another RB. Manning will be fine, and Tebow will fade into the irrelevant...