George Perles

Head coach, 1983–1994

Headline rating: as head coach. Every role he has been rated in is below.

Chemistry

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index in development

Seasons here—

Programs1

Stints1

Career path

Head-coaching stints since 1936; assistant roles since 2016

1983–1994Michigan StateHead Coach

As head coach

Rating—Peak72Career72

1983–1994 · 12 seasonsRecord 73-62National titles 0Great seasons 0 (top ~7% of all teams that year)

Rating 72: his whole career, recent seasons weighted most, measured as how far his teams stood above their era, crediting him with half of what each program already was when he arrived (about the share that, historically, follows a coach to his next job), fading as the program becomes his own.
Peak 72: best five-season stretch, 1986–1990 at Michigan State (37-19), taking over an average program.
Career 72 (#158 since 1936): total accomplishment over 12 seasons (73-62), 0 national titles, 0 elite seasons; full credit for the program he inherited.

Rating = who he is: his whole head-coaching career (since 1936), weighted toward recent years — how far his teams stood above their contemporaries, how much he lifted programs, his great seasons and titles. Form = the last two seasons. Career = the all-time ranking number.

Season	Team	Record	Season rank	vs contemporaries
1994	Michigan State	5-6	#25	+0.80 SD
1993	Michigan State	6-6	#34	+0.49 SD
1992	Michigan State	5-6	#44	+0.21 SD
1991	Michigan State	3-8	#76	-0.59 SD
1990	Michigan State	8-3-1	#23	+0.85 SD
1989	Michigan State	8-4	#16	+1.13 SD
1988	Michigan State	6-5-1	#20	+0.93 SD
1987	Michigan State	9-2-1	#12	+1.23 SD
1986	Michigan State	6-5	#22	+0.77 SD
1985	Michigan State	7-5	#28	+0.65 SD
1984	Michigan State	6-6	#55	+0.04 SD
1983	Michigan State	4-6-1	#68	-0.42 SD

Season rank = his team among all major-college teams that year; vs contemporaries = how far above the average team (in standard deviations).