The big name, former football coach Jimmy Johnson, has long been known. I don't know how he plans to play "Survivor." But when SI.com offered its list of the most hated sports teams of all time, the Johnson-coached University of Miami football team from 1986 ranked number one, and his 1992 Dallas Cowboys were third.* And, as previously posted here, it's going to be a competition between a tribe of over-40s and one of under-30s. You can find the full list of contestants here. (CBS formats the announcement in a way that makes it almost impossible for me to paste.)
*The list, by the way, seems to have been made just so the 2010-11 Miami Heat, with you-know-who, could be included. In 25th. Before playing.