On paper, Spurs' team and squad is a match for any side in the PL.
But the formation and tactics are not suiting the forward players. What is evident from watching Spurs is that there are a number of good players who are not combining as a team at present; nor is the best being made of their individual talents. Soldado needs Sigurdsson and Townsend to go wide so he can be poised on the shoulder of the last defender and he knows Eriksen might get some time and space behind to him to play him in. Instead both wide players consistently come inside, Eriksen gets the ball with no time to look up and play a pass and Soldado is isolated and crowded out. Spurs got loads of possession in the second half, but the chances to score relied on well executed set pieces, Newcastle failing to pick up and deal with Vertongen when he regularly got forward or on innovative efforts like Soldado's back header. What Soldado really wants is a quick move where he can run into space and meet a cross from the left or right. He's not a going to hold up the ball for others; like Defoe, he needs decent chances creating for him. Eriksen was bought to play a vdV type role and Soldado was bought to play as a goalscorer. £40M? for them - that's a lot to pay to have both of them playing as square pegs in round holes.
The EL is not helping either. Too much rotation, too soon, when players would benefit from a run in the team together.
A think a turning point for Spurs would be playing a more orthodox 4-4-1-1 from now on with Eriksen playing regularly as a no.10 and if fit and available, the same team around him.