At a conference I recently attended, we had several brainstorming sessions devoted to finding ways to improve the grant we were all on. An expert moderator rotated between several groups, and I always felt like he did more harm than good. In one instance, a constructive conversation was beginning, but it didn’t fit the format that had been imposed on us, so he actually stopped the discussion to reimpose the format. By the time he’d done his damage and moved on to the next group, the idea was gone.