Which team(s) had 90% games won. List the coach ID for the team and year played.
team with 90% games won refers to Divide (won, games) > 0.9
SELECT DISTINCT T2.name, T1.year, T1.coachID FROM coaches AS T1 INNER JOIN teams AS T2 ON T1.tmID = T2.tmID WHERE CAST(T2.won AS REAL) * 100 / T2.games > 90