I hope it would...but honestly, I doubt it.
Calgary is by far the strongest organization in the CFL top to bottom right now, with the best GM and the best coaching staff. Their offensive line is always good, they always have playmakers at receiver, special teams are best in the CFL by a country mile, and their defense is the best in the league at point prevention (Sask's made up a lot of ground as a whole because they score so much themselves, but overall Calgary's was better).
Bo-Levi is a good QB, but he's a replaceable part to an extent. It's almost impossible to fail in that system surrounded by that many strong players and coaches. Calgary lost a bunch of good players this past off-season. Didn't matter, Hufnagel just found better ones to replace them. If the Stamps hadn't been hammered by injuries in September, they probably go 15-3 again this year. In my honest opinion, they could replace BLM with a Jonathon Jennings/James Franklin level QB and still go 12-6. The Stamps make BLM more than he makes them.
In spite of the game MVP award (god is the media every lazy with those selections), I didn't think Bo was particularly good yesterday. Barely moved the ball at all in the second half, threw two bad interceptions in the first half. One Calgary TD was a punt return, another was a screen pass that ended up going for 40 yards, plus the FG after the fumbled Redblacks punt. That's 17 points that he had basically no part in producing in game where Calgary scored 27 total. Another Grey Cup where his performance was very iffy IMO. If Ottawa didn't bumble, stumble, and fumble their way around the football field for 60 minutes, we're probably talking about Calgary choking in another Grey Cup.
Hope I'm wrong though. Hope they crash and burn without BLM, if indeed he goes to the NFL. But I really can't see it. Hufnagel is the key to their operation.