The current form from Spurs actually highlights to me the reason you were wrong not to buy, you will have the opportunity to correct this in January. To explain, 3 wins from 3 and some good performances and people are starting to change their minds and think you can be a contender this season but if a few injuries happen to key players or rotation is needed later in the season you don't have the squad for it and you'll fall short. If the right players were not available in the Summer then fine but come January if you are still up there you need to strengthen that squad.