At the previous company I worked for they attempted to move to Agile. They brought in an "Agile Coach" who did "Agile Workshops" with the developers, and only the developers, for a week. They then asked the developers to explain Agile to the business owners, project managers, and testers. Needless to say it didn't work.
It was funny trying to get the business owners and PM's to storyboard features with the developers. After about a month that all stopped but our manager demanded we keep the daily standup. So we had a daily standup, with every single one of our developers working across multiple different, completely unrelated projects all talking about what they were doing. Which entailed the manager and other people interjecting to try to offer advice and help. Every day this standup would take at least an hour.
Luckily for me it happened right outside my office so I would sit in my chair at my desk actually getting shit done and pretend I was participating.