We are not particularly good at spending big - our 20 most expensive buys are as follows:
Ndombele, Sanchez, Sissoko, Lo Celso, Bergwyn, Soldado, Lamela, Son, Lucas, Sessegnon, Aurier, Bent, Bentley, Jansen, Modric, Paulinho, Dembele, Rebrov, Pavlyuchenko and Keane - Of those on a straight success/failure I would suggest 9 successes & 11 failures - but the jury would probably be out on some each way.
I have the successes as Sissoko, Lo Celso, Bergwyn, Lamela, Lucas, Son, Modric, Dembele and Keane - I expect that Sissoko, Lamela, and Lucas would be disputed by some and that the jury is still out on Lo Celso, Bergwyn as successes and on Sanchez and Sess as failures.