Rumors are the Steelers are going to knock off some coaches. You would think the DC is all but gone. Generally I am pretty tolerant of coaches who consistently win and Mike Tomlin fits that mold. Below is a Wiki full list of his career with the Steelers. The fact he won a SB in his second year has kept him safe even through two mediocre 8-8 seasons. But he bounced back and his team has been in the playoffs for four straight years.
https://en.wikipedia.org/wiki/Mike_Tomlin
But several disturbing things have happened the past two years. That cell phone debacle last year with Antonio Brown that felt like it had a racial component that was acceptable for Tomlin until it came out. His handling of the Anthem protest where they somehow hung out to dry an Army vet who plays OT was horrible. The continual discord around the locker room with players always bitching about something. The notion that the Steelers weren't taking the Jags serious as they "looked ahead" to the Steelers and even publicly admitted it. The bevy of recent playoff losses with this last one to an inferior team taking the cake.
Then there is his game management. Whether it be the end of the New England game where they were poised to tie it up but he decided to take a wild gamble or the recent Jags game where his decision to kick an on side kick with two minutes and all of his time outs left me flabbergasted. That on sides call was beyond bad. It was EXCRUCIATING. His excuse that he had no confidence in his defense was limp. Listen pal if you can't trust your defense to stop a team who will either run it or throw a short pass then what the hell are you doing coaching a football team? Similar to Andy Reid ( who has never won a SB) I sense both of these coaches are past their due date with their current teams. Big Ben is still playing at a top level but he isn't getting any younger and his mobility is long gone.
They will clean up some coaching spots but if they don't start winning playoff games I expect Tomlin to be let go within a year or two. And the media will howl but someone will hire him. Personally while I was pleased to see him FINALLY after all these years play a skilled white defender with TJ Watt and utilize a swift TE in Vance McDonald ( who was great against the Jags) I find it odd that the discord within the locker room has gotten worse these days. When they were one of the blackest teams going I rarely heard of problems. Yet with these white players he finished with a 13-3 record his best ever. If Tomlin and the Steelers draft more white skill players in this draft I will watch this team with interest. If they go back to their old "black" ways then I have to figure Tomlin uses the race card to "get the most" out of his black players and that doesn't square with me one bit.