I think that this is a real possibility. Too much was made of Osweiler's lack of success at the Houston Texans. However, we know that Bill O'Brien is an extremely difficult coach to play for (with an extremely complicated system) and O'Brien was in a power play with his GM at the time, Rick Smith. The rapid departure of Osweiler enabled O'Brien to also oust Smith as GM and to get the guy he wanted (Gaine) in the GM role. Up until Osweiler landed in Houston, he had played well in limited opportunities in Denver, behind Peyton Manning.
Also significant to hear Big Brock say the other day that he had a couple of other visits lined up when he was on the market as a free agent but when Gase called, he instructed his agent to cancel the other visits because he wanted to try to get the opportunity to play for Gase again. He definitely understands Gase's system and came in last Sunday with confidence.