My first point was to Mr. MacKinnon's intervention. Witnesses can always decline to attend, and if they provided us with a rationale that made sense in terms of their time being taken up in other committees or the fact that they aren't able to do their work, I'm sure we could extend grace to them for that.
When they attend other committees, the focus may be very different in terms of the questions being asked. The reason we may be seeing some overlap early on is that not a lot of committees were meeting. I know that the health committee, for example, invited witnesses from PSPC because there were questions around procurement and OGGO wasn't meeting, so we weren't able to ask those questions ourselves.
Some of these issues may iron themselves out. I would not want us to say no for people, and neither would I want us to not do our due diligence on this committee, asking the questions that we feel need to be asked around procurement.