For me, DevOps is mostly about communication and efficiency. It's for me very similar to Agility and Lean movements as they try to reduce the time between the birth an idea and the moment it is available for the customers.

DevOps is mostly about optimizing the interaction between Developers teams and Operations teams but the general principles can be applied across the company.

I think we focus too much on the "How" or "What", while we should ask ourselves "Why", Why do we do DevOps and why do we need DevOps, it's a reflexion I tried to share in these slides: https://speakerdeck.com/lothiraldan/the-importance-of-why-in...