Chelsea 0-0 draw with Arsenal the last game before Christmas

One year ago, Chelsea had 8-0 routed of Aston Villa. However, the last battle before Christmas this year, Chelsea 0-0 draw with Arsenal. But for Chelsea away from home, the current round draw with the leader is not a failure. More exciting for Chelsea’s fans is that the Blues finally rediscovered Mourinho iconic Jagged tight defense and tactical system. Mourinho’s promise of improvement in the defensive promised.
"If you want to become a beautifully play but also a winner team, you have to improve the defense. The team to enhance performance, should do better in the defense." To  focus more on the defensive at the Emirates Stadium rather than how massive attack to grab three points. This is true.
Not only that, the defensive position of William is quite back, almost half of the fullbacks to defend. Yes, this is Mourinho’s treasured tricks led Chelsea won two Premier League titles and get the Triple Crown at Inter. A solid midfield barrier , would rather give up some of the offensive forces but put enough troops in the back field. For Chelsea’s this change, Arsenal somewhat difficult strain , the first half until 45 minutes have first shot , almost half-court shot zero .