uhm FrenchFan, one of the ONLY things we've done well under PSA is defense. The two disasters in Australia last summer were firsts out of his entire tenure through 2012, 2013 and 2014. And Test 1 was a monumental failure of an attempt at inverted defensive tactics (although I'm sure you'll use that as an argument...).
Look at those results under PSA:
We've conceded in 2012:
16 points and 1.4 tries per game
We've conceded in 2013:
21 points and 1.6 tries per game
We've conceded in the 2014 Six Nations:
20 points and 2 tries per game
We've conceded under PSA (minus Australian Tour) a grand total of:
19 points and 1.67 tries per game.
Up until the Aus disaster we'd conceded 30 points (exactly) only once, in New Zealand.
Only 3x had we conceded as many as 3 tries, once per year.
We kept the All-Blacks to only 2 tries three out of four tests.
I think out of all the departments, defense was the one strong point of PSA and even that they managed to completely but I mean COMPLETELY fucck up in Australia more recently. It was experimental however and I don't think we'll see the likes of it again. Surely that staff is a joke, but defense isn't where we've needed help. At all.