I just read in the Detroit News that some departments just south of the City of Detroit are beginning to think about consolidation as a means to solve staffing problems and so forth. Being from western Wayne County(primarily the western Detroit suburbs) we are pretty much in the same situation but our mutual aid association isn't really discussing it and it doesn't seem to be an issue with the 'higher ups'.
We show up with a minimum of 5 personnel on scene of a typical house fire and mutual aid isn't used but rarely.(the F.D. just south of us shows up with 4!)