"With Kenjon being gone we figure he's probably going to carry the ball a little more. I think he wants that and we're going to let him go in that direction," Campbell said.
While 'more' might be intentionally ambitious, Campbell said he'd like to keep Thomas's carries beneath 20 per game this year.
Once Thomas reaches that threshold Byron Marshall seems the likely choice to spell him, and thus far Campbell has been impressed with Marshall's approach entering fall camp.
"He's more mature. He's more versed in the offense. He knows the system, he knows the pace of practice.
"It's a little bit easier for him going into camp. He feels a little more comfortable because there's no surprises," he said.
Two freshman running backs also figure to fit into the Ducks' plan in the backfield, Portland superstar Thomas Tyner and late commitment Kani Benoit. Campbell was hesitant to evaluate either players' performance thus far, especially prior to the first day in pads Friday, but gave the following input regarding the pair of new Ducks.
"His speed [stands out]. He's pick up things pretty well. He told me today that he's picking up the offense and I agree with him.
"He does one of the things I like most: break tackles. He has good hands, he catches the ball well.