Tottenham just haven’t reached their full potential just yet under Ange Postecoglou with a number of improvements to be made all over the field. Ange Postecoglou has some important things to be working on before the Lilywhites’ next Premier League game, with a trip to face Coventry City up next. Tottenham gave away the only goal in the North London derby due to some shoddy defending from a corner, as Gabriel Magalhaes gave Cristian Romero a slight nudge. Nowadays, more and more teams pile players into the six-yard box to crowd out the goalkeeper, and this worked to perfection for Arsenal. Desp…