Halas Hall is not good right now. Described as "shaken"

If you NEED a QB and you are in position to take one you like from your scouting, then you DRAFT HIM every damn time.

You NEVER pass on a QB in that circumstance.  Its the most important, impactful, and difficult position to nail down.
Never
Never
Never

If you have a bad, OL you still draft a QB
If you have a bad receiver group, you still draft a QB
If your coaching staff sucks, you still draft a QB

None of that means you ignore the other issue or don't try to address them.  And whether then rookie sits or starts right away is another matter I could see going either way.  The NFL is trending away from "sitting a QB for years".  That rarely happens anymore.  Unlike GB, most teams don't have a HOFer still on the roster playing well.  

But I'd far rather draft a QB I like when I have a shot at him and make him sit his rookie year while I get other problems addressed, then NOT HAVE ONE.  

For years around here during the Cutler-era, we all bitched about how the Bears hadn't "invested" in the position.