Therefore - is it solely down to the playing style and complete lack of attacking direction that people are calling for a change?
In my view the answer to this question is similar to as it was under Mourinho: if a manager of Spurs is going to play painfully dull football, then he needs to have us in the top 4. Anything less, even 5th (given the difference between what 4th and 5th gets you), wont be enough. Therefore Nuno needs to either improve the results or improve the style (or preferably both!).
One problem Nuno has but which is out of his control is that he followed another guy's whose football was terrible, and therefore fans will likely have even less patience for the same again
Unless we fall to say 10th or lower, I think he'll be given the season but I see us finishing in the 6th to 9th range. At that point, if the football is still awful and there are other candidates around, Levy and Paratici will be having a difficult conversation as I suspect they dont see eye to eye