I'll take a crack at it, and because the officials with me are the ones who really had to wrestle with that, I'll turn it over to them as well.
One of the concepts here is that the departmental plans also need to align with the budget to help parliamentarians understand what's planned. The challenge is that when there were only a few weeks between the tabling of the budget and the tabling of the estimates and departmental plans, not all of that planned spending could be incorporated in the departmental plans. However, the departments very quickly worked to complete their plans and tabled supplementary pages to bring it to full alignment. That full alignment was in place before any of the committees were examining the estimates and the departmental plans. That is another piece of the puzzle, as you mentioned, pillar four, of reporting and information.