The reason it is so fascinating is because, even though it is only 16 years ago, it feels like it is from another time.
While in his first year at Lincoln University studying Agricultural Science, McCaw wanted to make the New Zealand U19s and Canterbury U19s. The following year, he wanted to make the New Zealand Colts.
From there, he would make the Canterbury U21s and, following that, the Canterbury senior team.
They figured that, after the 2003 World Cup, a few players would head overseas and he would make the Crusaders and, everything going to plan, the All Blacks in 2004.
Uncle Bigsy didn't stop there, making McCaw commit to being a Great All Black.
McCaw couldn't summon the courage to write it out in full, so he scribbled G.A.B. and then, under his uncle's watchful eye, signed it and later pinned it to a cupboard back home.
Given McCaw's genius for openside flank play, the chances are he would have made it at anything, but Uncle Bigsy's role should not be minimised. With McCaw's signature, he had effectively signed his first contract, which owed everything to intrinsic motivation and nothing to monetary reward.
As it turned out, McCaw played for the All Blacks in 2001, a little less than two years after signing the 'contract'. His G.A.B status was sealed a few years later when he was named Tana Umaga's successor as All Blacks captain.
The other curious thing about the contract? Very few schoolboy stars - McCaw was a very good schoolboy player but perhaps just short of a star - would be satisfied to wait five years to be an All Black. They want it now.
The game has changed forever.
Wednesday
Talent ID
A question of timing
Is your kid really good, or just really good in your eyes?
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Thursday
Picking the right sporting school
Super Rugby sides scouting schools
Too much time spent on sport?
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Today
Turning talent to cash
Athletes need more than sport
McCaw makes plan to be GAB
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Tomorrow
Essay: Cambridge - NZ's new Sportopolis