This is emblematic of the Caldwell's disjointed policies and mismanagement.  

The majority of the police force is comprised of fantastic and hardworking men and women. But Caldwell politicizes just about everything at City Hall, from the EMS to the fire dept to the police. 

Caldwell has no over-arching or consistent leadership because he's propelled by special agenda and not the public good.

We should not be surprised if he appoints someone else. Caldwell has thrown his "partners" under the bus when they're no longer useful to him.