https://www.fool.com/investing/2023/09/13/t-mobile-outperforming-verizon-att-how-much/
It's not so much what T-Mobile is doing, but what it isn't doing. For instance, T-Mobile isn't bogged down by a telecom business in Latin America that lost $39 million last quarter and lost $326 million last year. AT&T is. T-Mobile isn't maintaining a fiber-based cable television service that's losing customers but is still too big to simply shut down. Verizon is. Meanwhile, T-Mobile isn't being forced to take care of any legacy landlines leading all the way to businesses and homes. Both AT&T and Verizon are.