He is APD over there (last time I checked).
Some people just aren't cut out to be PD. I don't know Keller or the situation so I don't know why he wasn't named, but maybe he didn't want tit, maybe Entercom felt he wasn't strong enough of a leader, or didn't like the dirrection he wanted to take the station. Personally, I think bringing in someone new to guide the Titanic around the iceberg was a smart decision. I don't know the circumstances, but it seems they wanted a different approach.