Surprised to get a message about being in a queue. Have they heard of concurrency? Lots of people are doing it. Unless I dont understand what they're doing (Always a chance of that).
Look at what Agile is promising to fix. The development process not the management process. Semantics aside, I like everything you said, except to say that either the line manager is doing those things, or 'it' (scrum) is doing those things.
Let me say this. I have found scrum in particular to be used as a management tool (report back tool), and not a developer tool. It doesn't matter where i go. It starts with the greatest of intentions, and ends up where management are sticking there fingers in the pie half way through. And by that I mean they don't use priorities on the backlog to manage the process. They use the standup meetings as a moan session when things don't go there way. To me scrum in its purest form is where the developer drives the process. Most projects will perform better if they just let them do that.