"There's a group of executives in various NHL front offices that came up through Kurt Overhardt's agency that have now worked their way into prominent roles and Miller, 36, is one of them. He's become an invaluable member of the reigning champs' front office, where he does everything from analytics to arbitration briefs to salary cap calculations. 'He's basically doing the job of three people,' said one NHL source. 'He does all of Doug (Armstrong's) dirty work.'