Stephen Harper's decision to recruit his next chief of staff from Bay Street has ignited a debate over whether senior business executives can serve a political tour of duty in Ottawa before returning to their corner-office jobs.

Mr. Harper recently tapped Onex Corp. executive Nigel Wright to take over from Guy Giorno as head of the Prime Minister's Office. It's a temporary loan from one of the biggest private equity players in Toronto, which has granted their prized executive a temporary leave of absence.

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