If  you look back  to the years 1990'S and the 2000'S , if a club bought a player for say 30, Thirty million pounds or for more they usually got very good footballers, of course  there were few who failed to meet expectations, but they were few.
Those that did well are as follows.
1) Kaka,
2) Zinedine Zidane.
3) Ronaldo. Nazario.
4) Christian Vieiri.
5) Pavel Nedved.
6) Luis Figo.
7) David Beckham.
8) Ronaldinho.
 9)Rivaldo.
 And thoose that flopped.
1) Andrei Shevchenko
2) Radamel Falcao Garcia.
3) Juan Sebastian Veron.