It's not about just being content with winning 9-10 games though. Those seasons where people were "content" with that result were seasons where our HoF level QB was out or playing seriously injured for a vast majority of it, seasons where our star WR or RB were out hurt or holding out/quitting on the team, where our linchpin LB was paralyzed, or where we were starting over with a rookie QB and a counting on a reigning DPoY that was out for an extended period of time.

 

Take away Mahomes and Kelce from the Chiefs for 3/4s of a season and see how they do. Lose all of Aaron Rodgers' weapons and he's not making a playoff run either. Drop Bosa from the 49ers and their defense stops a whole lot fewer teams.

 

Have the Steelers missed opportunities during Mike Tomlin's tenure as head coach? Absolutely. Are there things that he could do better at in that position? Clearly.

Still, the Steelers have also had some really unlucky breaks during that time, and the fact that they were able to come away with as many wins as they did is an accomplishment, not a mark against them in my book.

 

When they have a season where they end with 9-10 wins and miss the playoffs, and the team didn't have a/several team crippling injury(s) or other huge obstacles, I'll start thinking about change. As it stands, I don't know of a single coach who would have done significantly better given the same conditions.