I found it interesting and I wasn’t aware that this is how it worked within the offense and the staff on that side of the ball.
Ben J doesn’t determine which RB is in for which series, Montgomery does if I read the below correctly.
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From the Freep:
Interchangeable parts
The Lions have a true time share at running back with David Montgomery and Jahmyr Gibbs splitting the role almost equally. Montgomery has 127 offensive touches this season, Gibbs 123, and offensive coordinator Ben Johnson said Thursday he doesn’t change his play calling based on which running back is in the game.
“We certainly have certain plays that go to each guy, but for the most part, they just have their series,” Johnson said. "(Running backs coach) Scottie Montgomery will tell me. ‘I’m going to start with Gibby this series,’ or, ‘I’m going to start with D-Mo this series.’ And truth be told, I don’t know what the numbers say if you look at our self scout entirely, but I don’t call the game that much different for either guy.
“I feel just as good about D-Mo perimeter-wise or splitting him out on routes as I do Gibby running inside the tackles. It’s really, that doesn’t influence me very much, it’s just the flow of the game and what we’re doing, and that’s because both those guys I view, we view, as complete backs. They really, they can do anything.”
Gibbs leads the Lions with 656 yards rushing and is averaging a league-best 6.4 yards per carry, while Montgomery has 488 yards. Both players are on pace for 1,000-yard rushing seasons, and both have seven rushing touchdowns this year.
“I think teams will do the running back-by-committee approach, but it’s certainly not a 1A, 1B like we have here where they’re both, if they went to, call it 28 other teams, they’d both be the No. 1 back on all those teams,” Johnson said. “So huge luxury for us. It makes my life easier as a play caller, it makes our O-line’s life easier as they’re blocking for them up front and as we like to say, they just elevate their teammates, elevate the people around them.”