As with other officers of Parliament, there are a number of mechanisms to ensure the appropriate balance of independence. Appointment and reappointment is done by joint resolution of both houses of Parliament. The annual budget is first submitted to a parliamentary panel chaired by the Speaker of the House and then approved by the President of the Treasury Board or the Treasury Board cabinet committee. Treasury Board agents are required to publish performance plans and reports to establish an annual report on their operations. Did you comply with all those requirements when you were in that position?
On March 10th, 2011. See this statement in context.