I'm not going to blame Chief for this one because...well...crap happens.
Nook Logan, however, needs to be DFA'd immediately. If they don't do it, then there's no accountability on this team.
Even when that scrub actually does something right, he erases it by doing something incredibly stupid.
If he doesn't get sent down after this series, I might as well not attend any more games, as this team will display that they have no commitment to winning. Nook is a part of no feasible long-term rebuilding plan, so keeping him on the roster no longer makes sense.