I'd agree with the above, Spurs are (aside from some glimpses here and there) not working as a unit. Neither in attack nor in defence. During the Norwich match it often looked like players were moving in each others way. Somewhat understandable as all players have preferred ways and areas of play, pre-match instructions can change some, training can change some more and playing together often can improve it as well. For now it looks unbalanced. It could be that due to a leaky defence the subconscious decision of the midfield is too drop deep to help out the defenders. Or maybe that is what they have been told to do. Either way the result is that if the midfield is too deep then they are getting in the way of the defenders and nobody is doing the job the midfield is suppose to do - pressing the ball-holder. Possibly the team will get better at pressing once they believe that the defenders can keep clean sheets. That belief might only come once the clean sheets are coming -> might be a downward or upward spiral. Maybe (hopefully) Mourinho is now building a platform of a steady defence so that the team will have confidence in pressing higher up on the field and having more players in attacking positions.