Alessandro Nesta had the lowest winning percentage by a manager in Serie A with 30+ appearances, winning 6.5 percent of the time.

lowest winning percentage manager career 30 or more games

	COACH	W%	M	W	D	L	G	GC	XG	XGA	SH	SOT	PASS-ATT	PASS	POSS%	FOUL	YC	RC
1	Alessandro Nesta	.065	31	2	9	20	22	53	24.31	44.52	288	89	13,444	11,367	48.6	388	67	1
2	Pietro Maroso	.091	44	4	17	23	29	61									0	5
3	Pierpaolo Bisoli	.097	31	3	11	17	24	46							40.6		80	3
4	Dejan Stanković	.100	30	3	8	19	20	55	27.81	55.30	296	92	11,741	9,162	44.8	408	85	3
5	Giovanni Stroppa	.100	30	3	4	23	26	71			290	90	13,307	10,847	49.8	411	72	3
6	Corrado Viciani	.100	30	3	10	17	14	37									0	0
7	Ugo Innocenti	.105	38	4	9	25	37	85									0	4
8	Gianni Seghedoni	.107	56	6	25	25	29	64									0	3
9	Armando Segato	.118	34	4	9	21	29	57									0	2
10	Alfredo Magni	.121	58	7	25	26	46	74									66	8
11	Moreno Longo	.125	32	4	9	19	31	64			361	118	12,269	9,833	43.3	447	78	1
12	Enzo Riccomini	.133	60	8	26	26	38	76									0	7
13	Attilio Tesser	.136	44	6	13	25	38	76									106	4
14	Bruno Bolchi	.140	86	12	36	38	56	102									53	12
15	Bruno Vittorio Biagini	.147	34	5	13	16	24	49									0	1
16	Massimo Oddo	.152	46	7	9	30	47	88			530	161	19,605	15,382	46.2	646	99	4
17	Corrado Orrico	.157	51	8	21	22	39	69									51	6
18	Paolo Ferrario	.159	44	7	15	22	45	71									49	6
19	Guido Vincenzi	.167	30	5	13	12	27	34									0	2
20	Francesco Oddo	.174	46	8	16	22	43	78									105	9
21	Fabio Pecchia	.175	63	11	12	40	60	123			669	194	23,868	18,598	42.9	754	147	11
22	Luigi Rossetto	.176	34	6	9	19	29	55									0	3
23	Tarcisio Burgnich	.183	104	19	48	37	84	127									113	21
24	Bruno Pace	.183	60	11	23	26	46	79									0	7
25	Fabio Liverani	.186	59	11	15	33	68	128			726	243	24,620	20,239	45.5	714	141	6