i think its bill Russel because in terms of winning championships, he has 9 rings on his fingers.. in coaches wins in an nba finals, Phil Jackson is the most wins having 10 ch … ampionships and its latest win against Orlando magic..1 person found this useful. think its bill Russel because in terms of winning championships, he has 9 rings on his fingers.. in coaches wins in an nba finals, Phil Jackson is the most wins having 10 ch … ampionships and its latest win against Orlando magic.. 1 person found this useful.