Hard Agile, Soft Agile, and Not Agile
Labeling every non-pure Agile approach as “waterfall” is not helpful. Big Design Upfront only exists in the first quadrant, which we can indeed label as “Not Agile.”
Middle Managers Should Stop Coordinating
There's no need for middle managers to do any coordination. You just need a quick and civilized way for people to get together across the enterprise to coordinate decisions about a variety of topics.