I just think NZF were duped into making a bad appointment, by a smooth talking Heraf and an impressive on paper CV.
A review of the FFs setup is not a bad idea. A bit of honest introspection never did any organisation or team any harm. Heraf has been rightly panned, and good news he's gone. I just don't think he understood NZ football culture, or acknowledged level FFs were at.
However that doesn't mean you should disregard 100% any feedback he himself gives of the current setup. He brings a different European perspective, and to be fair to him he has a lot of experience.
He may just have the odd nugget or worthwhile point to consider. This after all is a team, that seems to have stagnated a bit (despite more players than ever with overseas contracts - though many are very recent).
Readings did say before he left, that he felt he couldn't add any more value. Maybe some long standing players are just a little too comfortable, and a bit of a shake up, or new ideas needs to be discussed.