SELECT t2.team_name FROM university AS t1 JOIN basketball_match AS t2 ON t1.school_id  =  t2.school_id WHERE enrollment  <  (SELECT avg(enrollment) FROM university)
Find the team names of the universities whose enrollments are smaller than the average enrollment size.
SELECT t2.team_name FROM university AS t1 JOIN basketball_match AS t2 ON t1.school_id = t2.school_id WHERE enrollment < ( SELECT avg ( enrollment ) FROM university )
select t2 . team_name from university as t1 join basketball_match as t2 on t1 . school_id = t2 . school_id where enrollment < ( select avg ( enrollment ) from university )
Find the team names of the universities whose enrollments are smaller than the average enrollment size .