They're not keeping more than 9 DL. It used to always be 8 every year if you recall.
When I did my roster I cut Butler, H. Phillips and D. Johnson, keeping six DEs and only three dedicated DTs. I think they'd like to keep Harrison Phillips because he's bigger than the others but I don't know who they cut to do it. Addison may be most likely but I think they like having him around. DL is finally fun to follow.