As someone with no insight into the radio business, it seems to me that The Fan is trying to get up to speed as fast as possible. They aren't letting the shows get some time to establish themselves. Jagger lost an hour with this Newy coming on board, which is your only known product, granted it's not a sports show. Personally, I think Jagger is just running out his contract. Someone at CBS decided not to pay for two shows not on the air. Sacrifice your morning show ratings for a while and see what you can replace it with later.
To me, they are going to compare themselves to Russ' ratings in their afternoon drive. Switching formats happens, but I'm sure someone wants to see results quickly. I don't know what Russ was grabbing. Maybe really high in key demos. I would guess at least better than average. The station won't be happy if they suddenly fall off the map behind The Hardline and Galloway. I wouldn't be surprised to see a few more show changes before football spring training.
I didn't think it was a bright idea to start a third sports station. Outside of the Cowboys, there isn't a lot of sports talk in this town. What happens April - August if the Stars and Mavs aren't playoff contenders and the Rangers already seem to be preparing for 2010? Everything seems to be geared towards being the Cowboys radio home, but the past host stations don't seem to have fallen apart without them. And, I would guess they are dropping NASCAR. The whole last third of the NASCAR season would be in conflict with Cowboy games.