Yes please
select t1.clubname from club as t1 join member_of_club as t2 on t1.clubid = t2.clubid group by t2.clubid order by count ( * ) desc limit 1
How many members are in theat club?
select count ( * ) from club as t1 join member_of_club as t2 on t1.clubid = t2.clubid group by t2.clubid order by count ( * ) desc limit 1
How many roles are in that club?
select count ( position ) from member_of_club where clubid = ( select t2.clubid from club as t1 join member_of_club as t2 on t1.clubid = t2.clubid group by t2.clubid order by count ( * ) desc limit 1 )