T-Mobile (TMUS) CEO John Legere's Biggest Predictions For 2015 By Scalper1 | January 5, 2015 0 Comment Scalper1 News T Mobile CEO John Legere ended the year with the same bombastic, over the top tone he has used throughout the past 12 months. In a letter published on the company’s website, the brash boss took Scalper1 News Scalper1 News Related posts: T-Mobile CEO Hedges On Overtaking Sprint As No. 3 Can T-Mobile's Free High-Speed Data Be Successful? T-Mobile Q4 Postpaid Shines; Prepaid, Tablets Light? Top 10 gutsiest tech industry predictions for 2015