Let's get something straight: Mike Tomlin does not like a running back-by-committee approach.
Never has, and likely never will.
Whether it was running the wheels off Willie Parker, watching Le'Veon Bell be an every down back or James Conner being the primary ball carrier when healthy, any way you slice it, Tomlin likes to have a back he can trust, and lean on, when it matters most.
Entering the 2020 season, the Steelers are faced with a dilemma at the running back position, but it isn't about having enough players on their depth chart.