John Legere (pronounced Ledger), the trash-talking chief executive officer who took over T-Mobile in September 2012, has cut prices, eliminated two-year contracts and roaming charges, and offered to pay early termination fees for customers who switch to T-Mobile. Wearing his iconic hot-pink T-Mobile T-shirt and black leather jacket, the maverick CEO declared his industry “stupid, arrogant, broken” in a Jan. 9 interview with Yahoo Tech at the Consumer Electronics Show in Las Vegas, and said he doesn’t much care how his competitors respond to his changes.