Leeds United need to make better use of the Premier League loan market this summer. Across the two transfer windows last season, Leeds signed four players on loan from top-flight clubs and only Joe Rodon can really be considered a success. Aside from Rodon, both Connor Roberts and Jaidon Anthony started just two league matches each and will not be returning permanently, while Djed Spence was sent back to Tottenham early. But if used correctly, it is certainly a market which Championship sides can reap rewards from and Chelsea are certainly one of the prime clubs Leeds should be looking towards…