The first test will come in tonight’s preseason opener at Buffalo.
There actually will be more opportunities than normal with Johnson out on the left side with a calf injury.
Addison led that group in sacks last season with 6.5, as the Panthers replaced Pro Bowl end Greg Hardy by committee.
“Everybody says, 'Well, we're going to do it by committee [again],'" Rivera said. “That’s fine. But if one guy steps up and becomes the water mark, everybody competes to get more playing time.
“That’s what I’m hoping for as far as somebody stepping up at that position.’’
“I’m expecting to take most of that defensive line into the second quarter, probably with the exception of Dwan, Colin and Kyle," Rivera said.