A lot of his picks were decent tbf. Cabaye, Sissoko, Debuchy, M'biwa, Tiote, HBA, Santon. I know all of them weren't great (M'Biwa, Tiote/Sissoko for large parts) but I think they were decent signings for where we were at that time.
That's not to forget the dross we also signed, but I don't think he was completely terrible. I'm glad he's gone though so Rafa is in full control.