Thanks! The people to bring together would be Dhaval Giani, Balbir Singh, Paul Menage, Kamezawa Hiroyuki, Li Zefan, Dan Smith, Kosaki Motohiro, Vivek Goyal, Bharata B Rao, Peter Zijlstra, Serge Hallyn, Srivatsa Vaddagiri, Matt Helsley, Jiri Slaby, Pavel Emelianov. There are other people actively contributing to aspects of cgroups as well, but the names mentioned would be a good starting place for the discussions on this topic.
Others, please feel free to add your name if you felt I left your name out of this topic, especially the IO controller folks.