I think this loss is on the entire team as a whole and the poor coaching decisions that were made with regards to the OL's performance. I'm unsure Dak was ready to present the best version of himself, judging by his performance. Hopefully, his lack of readiness and the rust that was evident will be relegated to the past. I hope MM changes his mind about putting Steele back at LT and uses someone prepared to play better there.
The entire team must be prepared to put forth the best version of themselves, instead of waiting for someone else to save the day for them. MM should be prepared to make in-game adjustments, rather than standing by and allowing poor play to persist. Truly good teams never allow themselves to accept losing so easily, judging by such a hapless performance. Examining collective and personal mindsets appear to be in order.