CREATE TABLE table_name_90 (position VARCHAR, league_from VARCHAR, team_from VARCHAR)
SELECT position FROM table_name_90 WHERE league_from = "western hockey league" AND team_from = "everett silvertips"
ตำแหน่งใดมีลีกจากลีกฮอกกี้ตะวันตก และทีมจาก Everett Silvertips
Which Position has a League from of western hockey league, and a Team from of everett silvertips?