I'll ignore the bolded, because it's not germane.
We all want to give the Pegula's the chance to "get it right." But it's kinda ironic that you think giving someone a contract extension, not just the Bills, but anyone in the NFL establishes confidence. But we will take a look at the Bills.
Rex Ryan was given 5 years, which you'd argue established confidence. He was canned after two years. The next guy getting a 5 year deal may say, "Hey, hold on, I don't think I really have 5 years."
Doug Whaley was given a 4 year extension with 3 years already with the team. He was canned after one year. The next guy getting a 4 year extension, with 3 years accrued already may say, "Hey, hold on, I don't think I really have 4 more years. "
Which brings me back to my point, that contracts and extensions don't establish as much confidence when you've demonstrated a history of disregarding your previous confidence when handing out those deals.
This isn't about pissing on the decision makers. It's about conveying the very real repercussions of their mistakes.
Besides, after a while, how fast you move away from bad moves becomes less and less important if you're moving on to another bad move. If the Pegulas get it right with these new guys, great. If they fire them 2 years into 5 year deals, we'll be having this discussion again. And probably looking at bringing in some old NFL corpse retreads to man our front office.