A couple of years ago we had Pocock & Hooper in the back row because there weren’t enough test level backrowers to push one to the bench, and we consistently struggled to fill the 3rd spot, let along bench depth. We had a succession of guys like McMahon, Mumm, a rookie Hanigan, Dempsey, Salakai-Loto. Prior to that guys like Richard Brown, Ben McCalman, Ben Mowen and Dave Dennis
Before Naisarani we hadn’t had a genuine number 8 since Palu (McMahon and Pocock were both good players but neither are what I’d call a genuine 8). And it is notable Naisarani was moved on pretty quickly. Fardy was a successful 6, but there was gaps both before and after his selection. WR (World Rugby) (World Rugby) still don’t really have obvious well balanced row. (Eg there is no obvious on baller in the leading backrow contenders - and there are a lack of effective onballers across our whole pack - something which severely undermined us last year).
I’m not saying all of these guys were total failures - there are a lot of good players in there - but most of them were inconsistent at best at test level and, apart from a brief period where Pocock, Hooper and Fardy operated together fielding 4 consistently test level backrowers in our Wallabies team has been a huge issue.
We’ve also had problems in almost every other position at various times, but I disagree that the lack of backrowers hasn’t been a chronic Achilles heel.