I'm not going to go too far to defend billionaires, but I think the Wilfs did OK with that situation. Frazier did get three years and two of them were the two worst years for the Vikings in the 21st Century. Awful QBs for sure, but he was a defensive coach and they had the 32nd ranked defense in the league in his last year. I think a lot of clubs would have fired Frazier after his first season when they went 3-13, but he got two more years.
Zimmer, yeah that went on too long, but he never won fewer than 7 games. It was a whole lot of average, but it was never terrible.