It is possible to shut down Greer and re-qualify parts at another facility. The reason it takes so long to qualify changes at Greer is the testing is done at another site and Greer is put at the bottom of the list. No one wants to make changes at Greer. Keep everything stable or hide the fact that if a re qualification takes place it might not pass and then you have a bigger issue. I do believe Greer will shut down or the legacy portion of aerospace will be sold. I left Greer because of the shady management practices and the fact there is only limited advancement. It is somewhat easy to move up one level but you will never move into a manager role with the good old boy system upper management believes in. Also reviews are not all fair.
Excellent point by @O1B0FBo-1xor.