2010/11:
Good Signings: Bonnuci, Storari, Quags, Pepe, Matri, Barzaghli,
Bad Signings: Del Neri (coach), Krasic, Martines, Motta, Toni, Aquilani, Sorensen
2011/12:
Good Signings: Conte (coach), Vucinic, Pirlo, Vidal, Licht, Giach, Padoin, Cacares
Bad Signings: Elia, Borriello, Estigbarria, Ziegler, Pazienza.
2012/13:
Good Signings: Asamoah, Pogba,
Bad Signings: Peluso, Isla, Giovinco, Anelka, Lucio, Gabbiadini, Bendtner
2013/14:
Good Signings: Tevez, Llorente
Bad Signings: Ogbonna, Zaza, Osvaldo
2014/15:
Good Signings: Allegri (coach), Morata, Stu, Evra, Pereyra, Koman,
Bad Signings: Romulo
2015/16
Good Signings: Dybala, Sandro, Manbro, Caudrado, Khedira.
Bad Signings: Hernanes, Lemina, Neto.
2016/17:
Good Signings: Huguain, Pjanic Benatia, Alves.
Bad Signings: Pjaca (maybe), Rincon
2017/18
Good Signings: Berna (maybe), Matuidi, Costa, MDS, Woj, Bentancur.
Bad Signings: Howedes.
I tried to include all first team/bench signings he made for us. I didn't include sales and you can disagree with me on this guy or that guy but definitely a couple of things stand out:
1) The ratio between good and bad transfers is getting better over time. We more rarely have useless bad signings.
2) For the most part, bad signings have been cheap youngsters or free oldies. Ogbonnas and Zazas are exceptions not normal.
He has done a brilliant job after a rough start with a bad coach and a bunch of bad signings in one shot in year one but from year 2 onwards, he has always done well and our coaches have been awesome in using the players he gave them.
When he does upset me its usually by not holding onto players rather than buying players I dont think are any good.