I think it’s a bit unfair to compare Burns to Peppers. Julius is a HOF and a once in a generation talent.
Pep is the gold standard that every team chased since he entered the league. He was also a #2 overall pick. Burns was selected at 16.
My expectation is for Burns to be between a Charles Johnson and a Julius Peppers in terms of his production. All signs point to him delivering on that .