Who’s next? Can they convince Craig Gordon to reverse his recent retirement? Invite Bolo Zenden back for a second spell at Stamford Bridge? Get Kieran Richardson to replace Marc Cucurella? Chelsea really have cooked up a fascinating transfer policy: to recreate the Sunderland XI that triumphed 3-0 at the Bridge in November 2010. Danny Welbeck, 19 and on loan from Manchester United, sealed victory that day; Jordan Henderson, 20 and days away from his England debut, ran things in the middle along…