Clements told the team's official website: "We're confident in our running game. It's been good and we hope to make sure it continues to be good and hopefully improve it.
"We hope all three of them are healthy and that will give us good options, whichever way we decide to go.
"It would be nice to have them all at the same time, and also to have [fullback] John Kuhn. We've had some injuries in the backfield. It's been unfortunate. Hopefully, when we get all of them healthy, we'll be able to let them roll."
The Packers will play the Detroit Lions next Sunday.