I think he is saying that some people tried to do it their own way. But they did not try to finish it the way that Martin Luther King laid out. It splintered. We had Malcolm X , who was a separatist until later in life. Jessie Jackson has done a lot, but he was a younger member when King passed. Also, as Big Cee mentions Adam Clayton Powell, who took the political route, and so many others. But the organization that King put in place did not continue. It was in a way, an end of an era.