Well the thing about a deal for Garoppolo is that it's not really supposed to be a "mega deal" for a superstar QB - the hope is that it's a more modest deal for a few years for a guy who can start and play well for you and provide veteran leadership on offense while you develop another guy. You know he might miss some games but you're developing a kid for the future anyway so you're probably alright with him having some spot starts.
They'd definitely need to make such a deal with the intention to protect as much as possible.
Issue is we don’t have a guy to develop now. Mac isn’t looking like it, Zappe is not someone you spend time “developing”. He’s a 4th rounder and he’s not even beating out Mac who we might move on from. So we are talking about getting someone who is unreliable to be a steady hand (not a good combo) for someone who either needs a major turnaround or isn’t here yet.
This isn’t about spot starts. Jimmy literally gets injured and his year is done. He’s not some guy who misses a game here or there.
And frankly I don’t think Jimmy wants to sit around and wait for someone to take his job. He’ll go to a team like the Colts or Panthers who are kicking the tires