Brock you mean?
There seem to be 2 conflicting forces at work in the NFL at the moment:
The Brock effect: An unproven QB that you bring in for a lot of money might paralyze your organization for 2 years if he turns out to suck.
The Dak effect: Getting a good young QB can turn a franchise from being a "maybe okay" to "legit Superbowl contender for the coming 10 years".
It's up to teams to decide which they think Jimmy is. I suspect there will be 1 or 2 teams that will convince themselves that getting Jimmy with 1 year left on his rookie contract is insurance enough to prevent the Brock effect and there's a good enough chance that he'll at least partly deliver on the Dak effect.
In all honesty, I think Garappolo is probably somewhere in the middle. Good QB that can get you in the playoffs with the right team around him. Possible Carson Palmer/Matt Ryan in a career year, but most likely more Alex Smith-esque on average. I don't think he's a generational talent that will alter the franchise on his own.
Maybe the biggest indicator of Jimmy's talents will lie in how Belichick handles him this off season.
If they hang on to him, they probably think Jimmy is legit.
If they trade him out of conference, they probably think he'll be pretty good
If they trade him in conference, they probably think he won't cause them issues if they had to play him
If they trade him in the division, they probably think he sucks
My hopes for trading Jimmy are mostly centered around the delicious irony that we can maybe get a 1st and 4th rounder for him and completely negate the Deflategate punishment, by trading the QB who only got to play because Brady got suspended. Superbowl 51 was already everything we could hope for as Patriots fans, with regards to Deflategate, but if we got those picks back as well, that would just be utterly hilarious.
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What a completely awful thing for Winston to say. That guy is my straigth up no.1 QB that I have no clue about what he'll do next. He might bring his team to a Superbowl win, and he might be out of the league in 2 years with a severe crab leg dependency issue. Just no clue what that guy will do next.
This is definitely the thing that he will hear about for the rest of his life though, much like the crab leg thing. Completely not done as the public face of a franchise.