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There is a Suggestion Box where employees can put their concerns or suggestions anonymously. A direct approach is also always welcome. It would have been helpful if you had expressed your opinion while you were employed in the Company. If you still are, please take this initiative and see whether any action is taken or not.
"Good 'Ol Boys may have gotten away with murder" but the Company culture promotes collaborative effort and so the Good 'Ol Boys network, if any, can be easily broken. By the way, Company has hardly "let go" of people, especially those who have given value to the Company.