Roseboom got more snaps than Verse.
This is why I'm leaning toward Shula being a problem too. We've always had weak links on the defense, but Morris managed that last year by limiting the weakest players' snaps.
For some reason, Shula feels he needs two ILBs on the field most of the time. He should deploy more creative personnel groupings, limit the two ILB sets, play Curl in the box more, and keep Rozeboom off the field.