How many distinct colleges are associated with players from the team with name "Columbus Crew".
SELECT count(DISTINCT T1.College) FROM match_season AS T1 JOIN team AS T2 ON T1.Team  =  T2.Team_id WHERE T2.Name  =  "Columbus Crew"
SELECT count(DISTINCT T1.College) FROM match_season AS T1 JOIN team AS T2 ON T1.Team  =  T2.Team_id WHERE T2.Name  =  "Columbus Crew"
[{'count(DISTINCT T1.College)': 1}]