Harry Winks had an injury problem, Lamela had injury problems, the whole team was performing very well in early December last year, before underdogs took over the top 4 knocking Chelsea, Liverpool and Tottenham out, thanks to Tuchel Chelsea were able to compete again. Mourinho deserves another season to turn things around.
You may be right but I really don't know. Even if Tottenham signed the players Mourinho wanted, I'm not sure whether they would have managed to fight for the championship. Because I still don't like Mourinho's style which is generally ending mostly-attacking play after scoring 1 or 2 goals. Tottenham really affected badly by that also. With a more fitted manager, Tottenham could be much better than this. And of course, I think they need to strengthen their midfield.