Agile doesn’t excuse you from having to do the work of resourcing, budgeting, business alignment, goal setting, sprint planning, acquisition, and so on. For bite-sized projects with just a few developers, it’s less of an issue, but for a project covering PMO, design, QA, change management, and multiple technical workstreams you have to have — and need to communicate to the business — at least a reasonable idea of what you’re getting into.

You ain’t wrong about how most businesses implement “agile,” though. :)