Longevity or lack thereof creates a workplace culture based on several factors.
Regardless of the size of a company or organization, employees will develop a culture based on historical aspects their employer.
Major events tend to separate these "generational" workforce cultures, such as a bankruptcy, downsizing, rapid growth period, or major structural change.
Employees on the job during these periods react differently in the aftermath of the event than prior to the event. New employees, hired after the event, are oblivious to the circumstances, feelings, and personal impact of key corporate events.