premise: Stephen Williams (born 5 June 1961) is a former Australian rules footballer in the South Australian National Football League, playing for the Port Adelaide Magpies and is currently an assistant development coach at Port Adelaide Power and head coach of the Immanuel College first XVIII.
hypothesis: Stephen Williams is currently employed by the Port Adelaide Magpies. 
reason: The context said that he is a former player, not current. The model may have been confused by the passivity of the statement. 