I mean if he was in the doghouse, he got there for a reason. DA isn't exactly a disciplinarian and, despite all his faults, has never shown the propensity to just put guys in the doghouse and never let them get out. Lattimore and MT both got out of the doghouse.
Whether it's not knowing the playbook, running wrong routes, not logging enough time watching enough film, a bad attitude or all of the above, he must have done something to not be active on game day, be #6 on the depth chart, get release, and not be claimed by 52 other teams on waivers. I mean it took Pete Carmichael to add him to a practice squad and I don't think any of us think of Pete as a great offensive mind at this point.