Totenham has quality players. I mean they spent to buy players unlike what you said. Just check the front line of Totenham squad. They have;
1. Harry Kane,
2. Son,
3. Richardson.
These are quality players that can get any amount of goals to give a team title win. But I don't know what to say about Totenham. Ot could be that the management is the problem.
We need to know that every team have their triumphed period and also their worst season. It happens that spurs didn't got their accolades the previous season, their performance was poor. Pointing out Richardlison, he's not a top player, he never was but with the presence of Son and Harry Kane, spurs were triumphed over their opponents in the past years. Tottenham Hotspur is one of the fierce team in the English premier league, they got what it takes to make their points count, the thing is they got unlucky along the line, with their performance, corrupt board and compromise incompetent coaches.