Sunderland boss Dick Advocaat admits his defence has been a problem so far this season. With the transfer window now closed, it's time to look at Sunderland's ins and outs and see whether Dick Advocaat can be pleased with his summer business. Ins Fabio Borini (Liverpool, £8 million); Jeremain Lens (Dynamo Kyiv, £8m); Younes Kaboul (Tottenham, £5m); Sebastian Coates (Liverpool, £2m); Adam Matthews (Celtic, £2m); Yann M'Vila (Rubin Kazan, loan); Ola Toivonen (Rennes, loan); DeAndre Yedlin (Tottenham, loan) Outs Connor Wickham (Crystal Palace, £9 million);...