Notice the part where I said, "Don't force it". More than once.
For example, if Zac Taylor becomes available somehow or if the Bears do give strong consideration to a Liam Coen, they would have a shared history of working directly with McVay and likely a shared offensive philosophy. It could make sense and give some continuity to the offense.
Or say you hire Joe Brady and he has all his own guys lined up, then yes 100% you go with his guys and exert 0 pressure to retain any current coach.
So yeah, again, don't force it. If it happens, could be interesting. If it doesn't, then perfectly fine with that too.