Waverly lost 2 linebackers (#34 and #1). There was a noticeable difference after #34 got hurt last year, and #1 was good for 10-15 tackles a game in the middle.
Waverly also lost from their secondary #83, #12, and #3 (#10 became a regular there in the playoffs).
The defense has a lot of holes to fill as well. Starting the regular season with Camden will be baptism by fire for the young ones. The good news is the line on both sides basically remains the same, and Palk has had another off-season to keep getting better. I think it will be another successful year, with some growing pains thrown in the first few weeks.