While he appears to be the odd man out of the rotation, Robinson insists he's ready to make any contribution coach Sean Payton asks.
"I'm the type of person, I'm gonna get what I get and do what I do with it. So whether it's 20 carries or one carry, I'm gonna do the best of my ability every play," he told ESPN.com's Mike Triplett.
The third-year runner added that he's back to "100 percent" after an arm injury kept him off the field for seven games in 2014.
Robinson is a bruising back with tackle-breaking ability who Payton's coaching mentor, Bill Parcells, once viewed as the next version of Curtis Martin.
Instead of Robinson, Ingram broke out last year, displaying a combination of speed and power. Then Spiller was imported as a pass-catcher who can devastate in space.
"It's all love in the backfield," Robinson said of the group. "We all work together, try to help each other. So I think it's a good thing we've got a full backfield again. So if anybody goes down, we've got another player right up there to do the same thing."
With the Saints looking to shift toward a ground focus in 2015, Robinson could still play the occasional role as a power back, but barring injury he'll play third-fiddle in this backfield orchestra.