I'd have been fine with that 6 weeks ago. But now? He needs to be fired. Even with injuries in the secondary, there is enough talent on the roster for the team to not be a bottom 7 defense like it has been the past 2 months.
The defense completely fell apart after he starting play offensive plays. Coincidence? Of course the injuries to Arnold, Joseph and Branch hurt, but maybe he had to neglect the defense somewhat.