100% True.
This starts at the top - setting the tone and what to expect and what not to expect.
Not tolerating poor performance, especially for how long the Rams have - (are you reading/listening Kroenke?)
Then defining 'who' your organization is, not just performance etc., who are you? What do you do? How do you treat people?- especially in difficult situations.
There is a TON more to changing culture than just brining in competent people. A TON MORE!!