For me, I think Fozzie will go down as a "nearly" man.
He didn't need a lot more to go down as a good coach of the All Blacks. Arguably, he only needed Jordie to kick that penalty and we had our noses in front in a 14 on 14 game with 7 minutes left in a RWC Final. Us with momentum and, I think, more in the gas tank. He nearly got to ride into the sunset with his middle finger in the air. But, in the harsh light of day, he - and his players - did not get it done.
It finished, a bit the way it started. Fozzie's first game in charge was an unexpected draw vs Australia. The game where Rieko dropped the ball over the line, which likely would have seen us kick clear and win. The next week we beat them comfortably - 27-7 - but, Fozzie's reign had started on the wrong foot and he never quite managed to right it - until the RWC quarterfinal.
Along the way, a couple of somewhat (with all due respect) inexplicable losses to Argentina. Both times rapidly avenged by thumping them the following week, but the damage was done. A final 10 minutes capitulation to England. Games that could have pushed him towards the (somewhat unrealistic in this day and age) 80 percent pass mark All Black fans seem to demand. On the other hand, he needed a very friendly time-wasting call on Bernard Foley, not to lose one (and lose the RC) against Oz (though that game should have been put to bed much earlier).
Some mitigation on the first half of his tenure. The recruitment process where the various candidates had to apply as pre-formed coaching teams ("The Deans Legacy") was misguided, at best - dumb as fuck in reality. Closed off recruiting the best assistants left Fozzie with Plumtree, Mooar and McLeod and I think that was proven to be a fair way short of optimal. We definitely looked better with Schmidt and Ryan on board.
At the end of the day, Fozzie probably came up about 20 points short of a good tenure. If he'd won the World Cup, much would have been forgiven. If he'd won the Ireland series (2-1), we would have stomached dropping one at home. The two draws could and probably should have been won. And winning at least one of the Argentina losses.
Fine margins and all that. Nearly!