Severus would have suggested perhaps since the accusation of imperiusing was there, they should have the group interview the Wizengamot members, looking for signs of the Imperius curse just to make certain there were no others and of course if there were, then that could be fixed.
Severus would have asked if there were possibly others who were involved in charitable work but were not involved in the Foundation. They might be good people to get involvd in this group as it provided separation, but would still be known do-gooders.
Also, he would have totally wanted to have seen Draco after the group met, if there was any opportunity for him and Agatha to do so. >>