CREATE TABLE table_1473672_7 (pick__number INT, player VARCHAR)

Serge Beaudoin was drafted when in the 1972 NHL draft
SELECT MIN(pick__number) FROM table_1473672_7 WHERE player = "Serge Beaudoin"
SELECT MIN("pick__number") FROM "table_1473672_7" WHERE "Serge Beaudoin" = "player"