LONDON — Only eight of London’s sprawling miles separate the stadiums of Crystal Palace and Chelsea –€“ but this week it seems the clubs inhabit different worlds.While Tony Pulis, the coach who last season dragged Palace out of relegation trouble and inspired an eleventh-place finish, left before the first ball of the new campaign had been kicked, claiming he was being denied the tools necessary to keep up the good work, Jose Mourinho continued his preparatory duties with a lavishly refurbished squad.Mourinho even said his latest collection could keep Chelsea at the forefront of the English and European game for five to ten years –€“ a shade optimistic, given that the average age of the likely starting line-up at Burnley on Monday is likely to exceed 26, but still in keeping with the general view that Mourinho’s men are most likely to take the Premier League title from Manchester City.I’m certainly of that mind. Chelsea are my tip because they have recruited so impressively, filling such gaps as appeared in their armoury last season by signing a top-rated striker in Diego Costa and a natural attacking left back in Filipe Luis –€“ both from Spanish champions Atletico Madrid –€“ and…