I think given what we know (and what Brady surely knows) about Belichick there’s always a chance. As much as I doubt the full four game suspension will stick, if Garoppolo does play that many games he’ll certainly have his work cut out for him. Most interesting to me is the Bills game in Buffalo against Rex. We know what fits he gives Brady, how would he attack someone in their second start?
I’ve said it before, Garoppolo is the best equipped to run the offense that has been tailored to Brady out of all the former backups. If he can avoid the big mistakes he should do just fine.
Still, Brady is Brady and I’d call it a long shot for him to lose his job, especially if it’s only a game or two. But as always with BB, never say never.