As the Pittsburgh Steelers head coach, Mike Tomlin has a long and successful track record. However, one of the biggest knocks against him is that he has virtually no coaching tree. This means that almost no assistants or coordinators on his staff have gone on to become head coaches.
While the merit of that criticism can be debated, it’s an odd fact knowing Tomlin’s heading into his 18th season. A coach rarely lasts that long with one team and doesn’t have a coaching tree. However, that could change, at least according to one coach currently on the staff.