Nowadays players are identified at schoolboy level and commit to provinces/SR franchises then. That's how Reihana ended up at the Chiefs as he signed with Waikato despite playing at St Kent's and being from Northland. The Chiefs have more talent coming through than you think with 4 provinces to select from, and would have more depth than any of the other franchises except the Blues. The U20s were undefeated in the NZ competition this year. We are not going to be able to retain all of them but the likes of Vaa'i and Tupaea have come through that pathway. Below that Finau, Slater, Norris, Lord, K Boshier, Roe, Trask and ENS are some of the younger players in the current Chiefs squad.
Selecting Dylan Nel for one season in 2020 didn't make sense ahead of any loose forward from the 4 Chiefs provinces. Ataata Moeakiola was signed in 2019 which meant we eventually lost Sevu Reece.