Because he sucked at his job, just less so than others. The only reason to keep him was that there were horrifically worse options. No one will miss Brenly. oh come on. To put things in perspective, The list of Cubs broadcasters that I hate includes (but is not necessarily limited to): Harry Caray, Chip Caray, Milo Hamilton, Joe Carter, Jack Brickhouse, Lou Boudreau (sp?) and Brenly. It's possible that someone will have fond memories of Brenly ragging on Aramis Ramirez but I'd guess that if the new guy is as good as he seems no one will find themselves wishing that Brenly would return.