Baleforce
Les Bennett
According to Wikipedia, he signed a brickton of players at inter in 2009/10 including sneijder, eto'o, lucio, milito and quaresma among others. But he also sold a bunch, including Zlatan witch resulted in a net spend of -£8 million.
losing Zlatan was huge, let’s also not forget that he beat Barca in the semi when they had Messi AND Zlatan