And if I chose a particular three years for Spurs, I would get the same answer. Look at the signings Liverpool made over the previous 3 years. You will get my 40% success rate on average. Look at Chelsea, Arsenal and Man Utd and it's a whole lot worse. You are confusing lucky streaks with skill. You only have to think about the process for buying a player to see why this must be true. The buying club sees him once or twice a week during matches. The selling club sees him every day. To buy him you have to pay a higher salary and compensate the selling club for losing him. It is ridiculous to expect this to work out well more than half the time as the whole picture is skewed against the buyer.