Sprint (S) network infrastructure chief Bob Azzi and product development/operations chief Steve Elfman are leaving the company, as SoftBank (SFTBF, SFTBY) continues shaking up the carrier's executive ranks. Ex-Clearwire CTO John Saw has been named Sprint's chief network officer.
Sprint's sales and marketing chiefs left last October. A possible factor behind the latest moves: Sprint has seen widespread service quality complaints - Consumer Reports ranked it last among U.S. carriers in 2013 - as it moves aggressively to migrate users to its 4G LTE network.
Another potential trigger: Sprint's LTE buildout is slightly behind schedule. The carrier originally planned to offer LTE coverage to 250M POPs by the end of 2013, but later lowered its target to 200M.