The question remains unanswered.
You posted that my criteria for when a coach should have to be accountable and his continued reign as HC & GM be examined: 3 years of declining results was not acceptable, but then when asked, declined to provide your own.
Upstater's criteria so far:
and
which once again doesn't set a time frame or criteria - just basically says "you don't do it."
And finally:
With amorphous criteria of "showing over and over again you can rebuild it..." and a mention of "forever" which technically is not "for life" since no one lives forever. So I have to give you that one.
That said, unless there's a contradictory time frame you posted which I missed (entirely possible) - then the only conclusion I can make is the opposite of NO TIME FRAME must be true?? Or maybe it's the criteria of "not Eric Bienamy" - you did put that - I guess that's a criteria, but that still basically leaves the decision of whether or not a HC stays in their own hands without accountability to anyone for all other circumstances.
In short, you haven't stated anything as to what would facilitate a review of Bill Belichick's term as HC and GM of the Patriots for his continued employment in that position.