Former T-Mobile CEO John Legere abruptly resigns from the company's board, more than a month before his term was set to expire

· Former T-Mobile CEO John Legere has resigned from the company's board of directors on Friday, according to an SEC report filed by T-Mobile. 
· The abrupt announcement will cut short the remainder of Legere's time in the company by more than a month, as Legere was set to continue as a member of the board until June 4. 
·...