You have a valid point.
The Rooney family was definitely more patient w/ Cowher than any other owner, or even Steeler fans, were. Of course, when you win 4 Super Bowls in 6 years, your fans tend to get a bit spoiled. That's why they would call for Cowher's head after a 6-10 season and/or set up "fireCowher.com" websites. Yet the Rooneys didn't pay mind to such idiotic banter from their "fans" and instead, stuck w/ the guy even when things looked bad. But, the difference is, their "bad" years weren't anything like the Bills' years. No back to back 2-14 years, followed up w/ a 4-12 (as the Bills did my first few years of high school). Just like the 4 titles spoiled Stiller fans, the years of losing and frustration over missing the playoffs have made Bills fans just as passionate 'bout getting good performance from the coaching staff.