Perhaps the only things to add are, one, that the department and the Bank of Canada devote some resources to forecasting both the inflows and the outflows so that the timing of our options for treasury bills and bonds is set up with a view of when in the calendar year cycle the government is going to require liquidity, and two, that the government maintains a reasonable liquidity buffer such that anything unforeseen can be managed.
On October 17th, 2017. See this statement in context.