I think Mr. Gallivan has nicely enumerated the work that IRCC will be doing.
To the question, we don't need the CBSA to be involved too early on, because then we will be spending our resources on people who may not have realized that their student visa has just expired or who may have another application. We need IRCC to determine who is now out of compliance and is not being brought into compliance.
As Mr. Gallivan said, there's regular communication among us, and we will be providing data and information to IRCC in terms of people who have left the country. I think it is important that we divide up our work so that we're not overlapping and bringing enforcement officers to a case that IRCC can ably either bring back to compliance or determine has left the country.