Yep, and they have units within the production line and that production only has to produce one or maybe two a year
And then the Tahs lost two gun lineout locks and best 7 in the country. And the reality is that any side will struggle to replace three starting wallaby forwards in one hit
But they knew it was happening. It's not like these guys leaving was a shock.
I's also argue that every team should always be developing replacement locks. They're hard to replace but you need to have a plan.
The Tah's have a history of just playing their top guys and not developing those behind them, read Mac Mason. Look at the Crusaders who will give guys 15-20 mins on the field to develop them and then when they need to start they have 10 or so caps and come into the team seamlessly (I'll give you the fact they have great talent too).