Over the last two seasons, Jahmyr Gibbs and David Montgomery have established themselves as the best running back duo in the NFL. "Sonic and Knuckles" complement each other perfectly, with Gibbs as the versatile big play threat and Montgomery as the more traditional workhorse-type. But they also can't be pigeonholed into those roles, with Gibbs plenty capable of taking on a big workload and Montgomery a very capable pass catcher.
New offensive coordinator John Morton will not be changing the core of what has made the Lions so successful the last few seasons. But he will surely add his own wrinkles to things, and it's worth wondering if he may shift the workload split in the Lions' backfield.