Glenn Mitchell was a radio host on KERA in Dallas for many years. Then he died. Very sad. All talk shows are only as good as the person talking, and Glenn was very good. Easy to listen to and very smart. His death left a bit of a void. So KERA spent a couple of weeks trying to figure out what to put in the spot where his show had been. At first they just had The Talk Show, which didn’t work out too well as the person (or was it persons?) they got to replace Glenn couldn’t quite do…