The entire Raven offense has been designed around Jackson. That's not just the design of it, but the personnel as well. So you'd have to not only change the QB, you have to change the OC, and the kind of receivers you have. That would require a 2-3 year reset assuming you find a good starting QB.
Not sure I follow. At some point, Lamar will be gone, be it injury, retirement, etc. And at that point I'd suggest they're just going to look for a Lamar clone and not change their entire offensive coaching staff, WR room, etc.
Sounds like you have a 2 time MVP QB who at $36MM/yr is a positive bargain. who has a bit of an attitude problem or rather a personality issue. But is basically a good guy who is going through a very frustrating and disappointing year. They will deal with it and will probably be a favorite next year to win it all.
The problem IMO is they've seen all the upside Lamar has to give, and the hits hes taken, along with aging, and how his particular genetics handles recovery (no so well, IMO) pretty much dictates he isn't going to get to that peak upside ever again. It's even quite questionable if he will be able to be QB1 for a full season ever again.
So, as above. they definitely have to already start planning for that day when Lamar cleans out his locker, since it might happen sooner than later, either because he calls it quits or they realize they are going nowhere with an aging injury prone guy.
Do they really want to be the team that has a guy like Rodgers who has a passable season once every few years but is down or sucks the rest of the time?
IMO it certainly won't hurt to draft a young athletic QB who can do some of the things Lamar does and coach him up as backup if nothing else. They gotta do something. Hope is not a plan.