T-Mobile has promoted CMO Mike Sievert to the COO position, according to a document the company filed with the Securities and Exchange Commission. Sievert served as the CMO under CEO John Legere since November 2012 and helped develop the company’s Uncarrier strategy.
Sievert will be in charge of all customer-facing operations, such as sales, marketing, and customer service. Tom Keys, COO of T-Mobile’s MetroPCS business, is now president of T-Mobile’s indirect channels.
These changes are effective Feb. 13. COO of T-Mobile Business, Jim Ailing, plans to leave the company March 13. CEO John Legere said via his Twitter account, “Some changes at T-Moble HQ. Have to change it up when you have great talent and an uncarrier revolution to run.”
