Maybe I'll start, and others can jump in.
In terms of a process of consulting either current or past members, certainly that's one of the tools that's available to any committee in terms of how extensive a consultation it wants to undertake. There might be a need for caucus consultations to see what each caucus has in terms of views.
Your point about witnesses is a good one. Obviously, witnesses and the testimony that they provide are key components to committee proceedings, and any actions that result in a chilling effect and that discourage them from volunteering to come before a committee to provide their advice and their expertise are certainly a preoccupation.