The Carolina Panthers are dealing with issues that only teams with elite rushing attacks have had to tackle.

Because of Rico Dowdle 's recent production and Chuba Hubbard 's impending return Sunday, the Panthers want to find ways to use both running backs in the most effective manner.

The Panthers recently have spent time studying and inquiring about how other teams with productive running back tandems have juggled the workload between two backs, league sources told ESPN.

The Panthers looked at how the Lions have worked with their talented tandem of Jahmyr Gibbs and David Montgomery , and how the Seahawks did it with Kenneth Walker III and Zach Charbonnet when Carolina head coach Dave Canales worked in Seattle.

There also have been a slew of other two-headed backfield

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