Complex sentence: On March 11,2011, Greenberg announced that he was stepping down as Managing Partner and Chief Executive Officer of the Texas Rangers and that he would be selling his interest in the Rangers and will no longer be associated with the franchise.
Split into simpler sentences: On March 11,2011, Greenberg announced that he is stepping down as managing partner and chief executive officer. He is also selling his interest in the Rangers and will no longer be associated with the franchise.