I think the legacy was set because the way George Mitchell was the leader enabled Tom Daschle to be the leader he is. It carried on the spirit of integrity and of reform, of also working both with committee chairmen but bringing in the newer members to be able to have a voice and a say and participate in the deliberations, to always look at a modern way of doing it.
God didn't give man wings; He gave him the brains and the spirit to give himself wings. Just as He gave us the capacity to laugh when we hurt, or to struggle on when we feel like giving up. I've come to believe that how we choose to live with pain, or injustice, or death. . . is the true measure of the Divine within us.