If Goff has a rough year, this team will pick him up. As a unit, they can survive a rough year by a player, even QB. I think we still make the playoffs, but as a wild card and then we get bumped off in the first or second game depending matchups.
Spoiler: I do not see him having a “bad” year. I believe he will be consistent with who he has been over the last year and a half. Assuming relative health of the team, I think we win division and make serious noise after that.
But a bad year would take us out of Super Bowl contention. I do believe we are in contention all else being equal.