The only way no is an answer here is if the entire defensive staff is let go and Manny hands the reigns to a highly qualified DC who brings/hires his own people.
If the option is keeping HaRumph... well...no
Manny better keep DVD. I dislike hiring green coaches but **** fire Rumph and promote DVD to CB coach. We all know Rumph sucks and can't recruit. At least DVD can recruit his *** off and that's 75% of the job.