Of course, especially next season when Tottenham do not play in the UCL, it will definitely be very difficult for them to recruit star players.
Harry Kane is the most influential player in the Tottenham team, if he leaves the team then it is likely that there will be a significant decrease in the team's performance.
It looks like if Harry Kane does indeed leave Tottenham it is likely that Tottenham will be worse, Harry Kane has been very good so far at Tottenham but what will happen when he will actually leave Tottenham, and it looks like this will require them to look for other players for Tottenham have not fallen drastically.