CREATE TABLE table_73286 ("Season" FLOAT, "Episode" FLOAT, "Episode Summary" CLOB, "Premier date" CLOB, "External Link" CLOB, "Coach" CLOB)

Who was the coach for episode 15?
SELECT "Coach" FROM table_73286 WHERE "Episode" = '15'
SELECT "Coach" FROM "table_73286" WHERE "Episode" = '15'