Jean Tigana
Velimir Zajec
Alain Perrin
Ossie Ardilies
Christian Gross
Jacques Santini
Gianfranco Zola
Egil Olsen
Juande Ramos
Avram Grant
Yer Bigfatmar
Jean Tigana - won Fulham promotion to Premier League and qualified for UEFA cup
Velimir Zajec - I'd literally never heard of him!
Alain Perrin - Had he won 2 more of his games he'd have the same win % as Roberton Martinex
Ossie Ardilies - got Swindon promoted to the Premier League in his first job
Christian Gross - saved Spurs from relegation 35% win record
Jacques Santini - 38% win record with Spurs
Gianfranco Zola- kept West Ham up, 29% win record, got Watford to 3rd in the league
Egil Olsen - 26% win record with Wimbledon
Juande Ramos - won Tottenham's only trophy in last 22 years.
Avram Grant - a penalty kick away from winning the CL final
So in summary only Olsen, Perrin and Zajec have worse records than Roberto Martinez