Screwing up the Saturn brand just leaves me shaking my head in disbelief. There was a time when I thought Saturn could become the next Harley-Davidson, brandwise. One thing's for sure, you don't win by retrenching.
Yeah, the whole Saturn and Oldsmobile business is amazing.
Just reduce Chevrolet and Pontiac to one model each with varying trim options, give Buick a good sedan and station wagon, bring back Oldsmobile as the full size heavy "Chrysler 300C" brand using the newest cool stuff and leave Cadillac alone. Easy as pie, and it worked for almost fifty years.