I think Russell will do well in Pittsburgh. He fits their approach. 26/8 vs 14/14 (TDs/Ints) will win them several more close games. Instead of 10-7, it could be 12-5 or even 13-4 and 1 or 2 seed. All other things being equal of course. And his salary is vet minimum, so this leaves them room to get a couple more talented free agents or keep a couple more of their best players. IIRC, Pissburgh can get 2 years of this cheap Russ rental, and I'm sure they did their due diligence, unlike the Donkeys. All anyone had to do was watch Kurt Warner's breakdown of Russ, to know that he's no Tom Brady. The Steelers will run the "Russell Wilson Offense" and a lot of the Seahawks 2013-2014 elements will be in place for them to succeed.
From Russell's POV, if he helps Pittsburgh make a couple deep playoff runs, AFCCG or beyond, that would cement him as a strong HOF QB candidate. Russell will be motivated.
That's a fair take, certainly from the standpoint of a pro RW fan.
But the flip side is that this is not the same Russell Wilson of 2013-14. That Russell Wilson was amazingly elusive, a football Houdini who frequently would escape from the most impossible of situations and make game changing plays as a result. But Russ still retains those elements that made him successful 10 years ago in his current repertoire of quarterbacking skills.
Basically, he holds onto the ball too long. Despite being 35 years old, he's amongst the league leaders in both time to throw and pocket time, ie the time between the snap and when the QB either throws or the pocket collapses.
Pittsburgh's offensive line had their problems in pass protection last season, with PFF ranking them 31st in the league in that category. The Broncos OL, on the other hand, ranked 5th in pass protection, yet Russell was still the 4th most sacked QB despite playing in just 15 games.
That means that one of two things has to happen: Either the Steelers vastly improve their offensive line as it applies to pass protection, or Russell starts getting the ball out of his hands quicker, something that he hasn't been able to do his entire career.
My take is that it's hard to teach an old dog new tricks. But we'll see. It's going to be an interesting drama to watch unfold.