Its too bad our owners are always drowning in the deep end, because continuity is key. As fans we have actually been through this exact scenario before, and seen how the Lovie/Dungy-Green/Noll coaching tree handled it. The solution was spelled out by Lovie Smith to the press, if they remember or would care to add to the discussion in a constructive way.
"We are going to divide the season into quarters, and review where we are after 4 games."
This is what avoids the scenarios peeps are freaking out about, this is what gives Trubisky his fair shake in a last chance scenario. Its not all on one play, one game, one read, one good play by the opponent. You give Trubisky a quarter of the season and you plan to look at the big picture again before the primetime game.
I think when you fire your coach every 3 years sometimes the staff loses the continuity and learning that a fan base has already been through. Hence how on earth you could blow 27 of last 30 season to one issue...the offensive line.
Clueless owners and a new fool bashing our collective heads against the wall with the same problem for 3 decades. It was just 7 or 8 different dudes who don't listen to fans about what the bears need to win at soldier field and how to build yourself, how to release pressure on the next desperate search for a QB, how to deal with the conditions.
When the ownership has no spine, the team has no continuity or carry over to deal with problems, its just a new guy thrown in the deep end every few years who can't learn in time to save himself, and a fan base worn the fuck out with the same issues on repeat.