As Ms. Martinez Ferrada proposed, and you yourself mentioned, there should be a deadline for confirming witnesses so they can acquire appropriate headsets. It's also very important to have a stable Internet connection.
We also need the documents so we can prepare. I'm not an expert in all fields. You have to understand that we're called upon to work for some 25 standing committees of the House and the same number for the Senate and that we jump from one topic to another. If I work on the Standing Committee on Fisheries and Oceans, I don't know the names of the 33,000 species of fish in English or in French. If I have to interpret a presentation on that, it's absolutely crucial that I get the documentation in advance so I can do that work and do it well.