Conversation so far:
When did Brett Hull get started in management?
November 13, 2007.
What company gave him his start?
Hull was promoted to interim co-general manager of the Stars, sharing the role with Les Jackson after Doug Armstrong was fired.
Did he have any other positions within this company?
named them permanent co-general managers.

Question: How long did he work there?
Self-contained rewrite: How long did Brett Hull work for the Stars?