Well, the reconciliation of the estimates to the fiscal plan is a task that the federal government already performs, but it could be done in a much simpler way, because what you want to do when you're voting a dollar of spending is to understand if it is consistent or not with the overall fiscal framework, and there are ways of presenting that information that are quite a bit clearer.
I hedged a bit on the question of doing it simultaneously. If the budgets are going to continue to appear in, say, November of the year before the fiscal year starts, then you can argue that the estimates can't be presented simultaneously, but I would still say that they ought to be presented in a way that makes it very clear to parliamentarians whether or not, if they vote for a particular appropriation, it is consistent with the fiscal plan.