Michael Cawley, the former deputy chief executive of Ryanair, is one of 10 directors activist investor Elliott Management wants to put on the board of Southwest Airlines.  Elliott Management, founded by billionaire hedge fund manager Paul Singer, has a seven per cent direct stake in Southwest and controls four per cent more of its shares indirectly. It needs 10 per cent of Southwest’s shares to call a special meeting and try and appoint its 10 directors to the airline’s 15-person board. Elliott is expected to pass this threshold imminently. Cawley is currently chairman of Hostelworld, a position he has held for…