My contribution? Mainly, first identifying the problem, next getting the right people together, then monitoring Kaiser to keep him straight on the fact that filtering need not have exclusively to do with time signals, and finally, reminding them of what they knew from statistics (or should have known and probably did not). It seems to me from my experience that this role is increasingly needed as people get to be more highly specialized and narrower and narrower in their knowledge. Someone has to keep the larger view and see to it things are done honestly.