T-Mobile CEO John Legere clearly knows what he is doing. The nation’s No. 4 carrier was barely an afterthought in the press a few short years ago and now the media just can’t get enough of Legere and his antics. Known for letting loose with profanity during press conferences and bashing ATT every chance he gets, Legere has made quite a name for himself. Of course, showmanship is only one aspect of Legere’s game — he has also managed to shake up the U.S. wireless industry and make T-Mobile the most important carrier in America. Now, T-Mobile’s CEO is ready to unveil the next phase of his “Unacarrier” initiative live from the International Consumer Electronics Show in Las Vegas. Rumors suggested that