Indeed, Bill has been hired by WSB. Former CNN colleague and a great guy on and off the air! Good voice, too.
I'm definitely not one to be speculative...but, Bill is way too talented to be stuck on weekends (he was the morning anchor during the last years of CNNRadio) so is Cox trying to find big talent to eventually promote to bigger and better things? (Not going to say what I'm thinking here, but you can figure it out...)