From a Mental Standpoint, Would You Be Prepared for a Full Tear Down?

Let's say we went the Panthers or Bears route and got a top pick, a quarterback. In his first year, he struggles, and we're winless by Week 12. How would you deal with it from a mental aspect? Would you still complain? Over the past two seasons, I've heard a lot about how this team should be deconstructed from top to bottom. But I've always wondered if folks really want to deal with a year of losing and no playoff berth in sight.
I guess the question is how much is enough. I would start with the assumption that nothing is sacred and everything is on the table, yet, there's no such thing as a complete, from the studs up, rebuild because you still have to have enough players to field a team and what goes and stays.

That said, the coaching starts at the top and we need a new HC. Then empower the HC to choose his own staff and then start tweaking a roster that fits his vision. Then everything else flows from there. It's gonna take a while, like 3 years before we see real results imo. It's worth it tho.