I think it is inevitable that organizational "culture" changes. The tricky part is figuring out exactly what parts need change and what parts don’t.
For example JPL used to have beauty pageants ("Miss Guided Missile"). More recently, management appears to be trying to adopt policies and procedures from some venture funded commercial space companies. It is not clear how helpful these efforts will be given that these organizations are in fundamentally different businesses.
https://www.jpl.nasa.gov/images/slice-of-history-70th-annive...