Find the names of schools that have some students playing in goalie and mid positions.
SELECT cName FROM  tryout WHERE pPos  =  'goalie' INTERSECT SELECT cName FROM  tryout WHERE pPos  =  'mid'
SELECT cName FROM  tryout WHERE pPos  =  'goalie' INTERSECT SELECT cName FROM  tryout WHERE pPos  =  'mid'
[{'cName': 'LSU'}]