"To Plan Our Liberation"

I thought I would comment on the Best article as my quick look over the other posts did not mention it often. I found Best's discussion of the Black Panther Party and the Model Cities program quite interesting. Cobb and other leaders emphasis on concrete political objectives in addition to so-called "power-grabs" was necessary for the inclusion of the overlooked part of the Oakland area population and even though they were essentially unsuccessful, Best shows that they helped to change the Oakland political culture of the black population. The other thing I found interesting was a comment by Best at the end of the article. He commented that the concrete poltical stances that the Black Panther Party established in Oakland were important but that the Panthers were also "rightly taken to task for the occasional emptiness of black power rhetoric." I know little about the historiography of the Black Panther movement but I was wondering if this is a fair assessment? To me political rhetoric is usually empty and often considering topics of much less practical importance. I was just wondering what others thought about this comment.