Comment- , I would assume that the 2013–14 UEFA Champions League is one competition with various stages, where as the 2013–14 A-League is a separate competition to the Final Series of that season (the league acting as qualification for the end-of-season play-off tournament). So, it could be said the 2013–14 A-League season is comprised of two separate competitions.  
I'm still not convinced that the addition of season to the article name will add clarification. Is clarification really necessary? If so, why?