In the case of the Canada emergency response benefit, the department responsible for it is Employment and Social Development Canada. It recognized that, given the volume, it couldn't administer all of it, so it looked for the Canada Revenue Agency to support it in delivering that payment benefit in a timely way. I can offer that up to you, and then I guess you can ask the deputy ministers their thoughts.
On April 15th, 2021. See this statement in context.