Here is my prediction:
The starting DEs are going to be DeVito and Jackson, with Poe at NT. Powe and maybe Toribio (if he makes the roster) are the backup NTs. Bailey, Dixon and Muir will be backups for DE. The D is going to be aggressive with the OLBs blitzing a lot (similar to the Jets). I think we will see TJax in the backfield more often as we started to see when Romeo stopped being D coordinator and Gibbs was DC. I was surprised by how often Poe played well last year, and I see him doing it more often this year as e continues to develop. DeVito is a run stuffer, probably wont be in often on passing downs.
My bigger concern is that TJax is on a one year contract basically, so he may not be back next year. If he doesnt step up, we will have to likely draft a DE next year.