I've heard a bunch of different reasons for why he opted out, but most of them from the Cowboys side are things that were present when they signed on with the Ticket. Weak signal, could make more money elsewhere, etc.
Jerry went with the Ticket because they smoke everyone else in ratings, and he thought he could "buy" the biggest sports radio station in the market.
He may not mind the playful mocking, but he doesn't like the legit criticism.
The Ticket's Hardline made the station and their own name bagging on Jerry.
It boiled down to Cumulus not wanting to pay what CBS did as they were already the highest rated sports station.
Jerry got a MUCH larger deal. You can count on one hand the number of times Jerry has been truly upset by the media.
That was a long weekend for guys like Tom Hicks.
Jerry creates chaos and unrest just to grab attention.
His only concern is people not talking about the team or himself.
Jerry invented the phrase "never let your money get mad".
What we know for sure is CBS paid a fortune for the deal and made it the cornerstone of ramping up Dallas area sports talk.
They also chased former Ticket guys Hammer, Ben and Skin and later BAD radio.
CBS made a direct attack on the Ticket. And with the Cowboys it worked.
The Ticket is still well ahead but CBS has been closing that gap and it is largely because of the Cowboys deal.
I certainly never took New School or many others seriously there previously.
FWIW Sturm is doing a lot more radio stuff for the Stars, FC Dallas and presumably others.
I don't think he hates the Cowboys but I do think he spends less time on his analysis than he did 2 years ago.