Beware SAFe, an Unholy Incarnation of Darkness
The Lean Portfolio Management function that controls funding, are given sole authority to approve which Portfolio Epics move into each stream. Epics are not explanations about a problem that needs to be solved. They are pre-formed ideas about how best to solve those problems.
Right away we can see signs of the old-school mindset of viewing teams as a “delivery” function instead of a strategic one. The high level thinkers come up with ideas, and the low level doers execute on those ideas. Ignored is the possibility that those closest to the work might be best equipped to make decisions about it. Escaping from this misguided mindset is a core goal of Agile thinking that SAFe fails to remotely accomplish.