> A team using Scrum still needs skilled people who know how to do their jobs effectively – and that includes the scrum master and product owner roles.

That is my key beef with Scrum here. I entirely agree that done well Scrum can be effective. But how it is often done is not well at all (e.g. the two day Scrum master training course.)

I'm criticising Scrum as it's widely implemented and how that is poisoning the groundwater for all agile methodologies.

And definitely I'll get on to how other processes can be better.