> No I would not, but I would probably identify the important ones for
> each team, as you and Gunnar suggest, and I would also take it up
> with the other volunteers and get a feel for how reliable their
> "promise to volunteer" is. We don't want people willing to
> volunteer, we need people with self-initiative who can drive things,
Well FWIW the self starters are likely already involved. My experience with conferences and promises to volunteer is that it is hard to measure promises unless you know the person.
I suggest using current contributions and total cost of request as the heavy measurement and minimal consideration to any offer to volunteer.