You apparently didn't get the memo with the GM Internal Codes.
Follow the bouncing ball.
Karen Francis/Olds
Cynthia Trudell/Annette Clayton/etc. Saturn
Debra Kelly Ennis/Saab
Lynn Meyers/Pontiac GMC
At the point and time when a division OTHER THAN CHEVY desperately needs a car person, GM picks a woman to temporarily 'groom' for management. That new hire then proceeds to learn the ropes by making EVERY SINGLE MISTAKE ever made in the past, infuriating dealers, destroying internal morale and setting the division on a path to even larger problems.
Just before the wheels fall off, GM rotates people and brings in someone with some actual experience to try and fix the damage. See Jim Bonnell, etc. Sadly, by then the damage has been done and help is years down the road.
The point of this isn't to pick on any of these people--they were/are all very nice people. However, not one of them is what you'd call a real 'car person.' Some of them had absolutely no business running a division.
GM has this weird history of using their weaker divisions as training grounds for questionable management candidates, often with disasterous results. You'd think that the losses caused by the problems at Olds, Saturn, Saab, etc would put an end to this. I'm not so sure.
Hopefully, Buick's fate will be better.