Moss came through the ranks at Manly United before making his first grade debut at 17, and enjoyed a season at the Central Coast Coasties in 1997, ironically alongside his new colleague, in Mariners Head of Sports Science Andrew Clark. Moss then made his mark in the old National Soccer League under Graham Arnold as a defender cum midfielder at Northern Spirit via a short spell at Eastern Suburbs, before ultimately returning to his old stomping ground.
At Cromer Park, Moss was player coach briefly before taking the reins as Head Coach, and steering the club toward the NSW Premier League.
Before entering as a coach at State League level, Phil had coached Dee Why Football Club in 1996, who were at the time a Premier League team in the Manly Warringah Football Association competition. It was here that he made his mark winning the Grand Final, beating Pittwater RSL (2-1), winning the MWFA Cup (knockout competition), then winning the MWFA sixaside competition and even taking the team to defeat Manly United's first grade squad in an exhibition match on Cromer Park's number one field.
Moss has also had experience in the National team environment, assisting Arnold during the successful qualification campaign for the 2008 Beijing Olympics with the Qantas Olyroos.