I'm not certain if there is a specific policy in this area. This committee has been very clear on its position. It has been an important discussion, because my sense is that the government and the Clerk of the Privy Council, who makes recommendations to the Prime Minister on the appointment and tenure of deputies, have been working very hard to try to extend the time period. So I don't think we have a specific policy per se, but the intent is to try to extend that tenure.
I'm a case in point. I've been the Secretary of the Treasury Board now for almost five years. Prior to that I was Deputy Minister of Fisheries and Oceans for five and a half years. There are a few cases. There have been cases where people have stayed quite long. It's true that if you look in the past there are some who have moved relatively quickly, but the statistics show that tenure is increasing.