What if it's a mediocre season? Like 6-6 and a thffpptt bowl game? Then what? Is that going to be enough to save his job?
With the previous three years, maybe six wins is a good year, by comparison. But a good year, to me, is 8 wins. That's 2/3 of your regular season games. You win 2/3 of your games in MLB and you're on fire. In the NBA, it's about 53 wins, and that's a good year. Puts you at 11-6 or thereabouts in the NFL, and that's good enough most years to at least get a wild card spot.
7 wins is decent. At least you broke even. That can let you leave Vegas with at least a smile and some change in your pocket.
6 is mediocre to lackluster. Tepid fits as well.
5 is dear God how much longer do we have to put up with this (bleep)?
4 or < is ... time to storm the castle.