Dalembert, Gooden, Pryz, Sanders, Ilyasova, Luc Richard, Udoh, Henson.... that's 8. Your backup C is going to be highly dependent on who they are playing. Pryz is the only backup C that gives you a chance against Howard, Bynum or some of the other big Cs. Ilyasova, Luc, and Henson are probably not choices at C for any reason. Gooden, Udoh and Sanders could play backup C against smaller teams (or when the bigger C is out). Still, that is quite a few players. Henson, Udoh and Sanders are all very similar players.