My only experience with AT&T is as a customer. But even as an outsider I can tell that the company has huge organizational silos (albeit with a workforce that finally understands customer-friendliness).  Every transaction for each of my multiple AT&T services appears to require interfacing with a completely separate information system and likely business unit that often has no record of what’s happening in the other accounts. For examples: I get three bills. When I ask for one bill I am told, “All your services have different cycles and that would be a mess.” After moving to a new residence, I returned the U-verse device (which enables TV, wireless internet and the land line connection) from my former address to the AT&T wireless store, where I was told, “We don’t accept U-verse returns here. You have to go to the UPS store.” In…