Bad; Alcaraz(free 4th choice defender), Kone(correct, bad 6m), McGeady(poor but only 2-3m), Niasse, Mattioni (free) Rodriguez(youth signing for less than 1 mil)
Mediocre; Cleverly(free), McCarthy(13m), Holgate(youth signing), Lennon(done well mostly), Barry(free/1-2m and our most steady performer), Galloway (Probably would make a good signing played as a CB, still young and got injured this season )
Good; Besic (When played as a CM only cost 4m), Robles(only a few mil), Funes Mori(9.5mil) ,Deulofeu (only around 4-5m)
Very Good; Lukaku (overpriced by 10mill at time of purchase for an unwanted player,)
That's my opinion on his signings, his Transfer market signings arent as good as everyone is making out tbh but that's just my opinion.