I'd wait until Tomlin is gone to bring any QB they think has a shot of being an NFL starter. In addition to not developing coaches, Tomlin does not develop QB's. Any players for that matter on offense.
He's a defensive coach running on defensive coach skills and schemes from 20 years ago. He's had a few really good defensive players on his watch, but most of that roster is buddies and pals he hangs out with on Sundays. You know how we think it's cool to get some of our buddies to come over and hang out while we watch a game on the couch? Tomlin is doing the exact same thing, just on the sidelines of an NFL stadium each week.
One reason Russell Wilson was brought in is for what you mention, money. That and the longshot chance they'd catch a break and a guy who hasn't played good football in 3-4 years would all of the sudden get his form back. Yeah, when has that ever worked in the NFL?
I'd like to be wrong about any of these assertions, and I'll gladly back down on any of them if there is proof otherwise. I'm not holding my breath.
-Mike