Conversation so far:
What was Bobby Orr doing in 1966?
Orr made his NHL regular-season debut on October 19, 1966, against the Detroit Red Wings.
Had he played in exhibition games before that?
CANNOTANSWER.
Where did he play before October 19, 1966?
Orr joined the Bruins for the 1966-67 season, his first as a professional.

Question: What position did he play for the Bruins?
Self-contained rewrite: What position did Bobby Orr play for the Bruins?