It means loose forwards Jerome Kaino and Akira Ioane putting in consistently high-quality performances in the absence of the injured Blake Gibson - out for the early part of the season after shoulder surgery.
It also means empowering first-choice first-five Stephen Perofeta with the knowledge and confidence to unlock a backline including the obvious talents of Sonny Bill Williams, Rieko Ioane and Matt Duffie along with the potential of Jordan Trainor, TJ Faiane and Caleb Clarke, son of Eroni, who stormed through and over defences in Georgia for the New Zealand Under-20s this year.
At this early stage the Crusaders look ominous again, and not only because of the 13 All Blacks in the squad (not including Jack Goodhue, Tim Perry and Richie Mo'unga who are on the fringe of the national team).
The new players called into Robertson's squad for the first time - Tasman's Will Jordan, a fullback, and loose forward Ethan Blackadder (son of Todd), and Canterbury's Billy Harmon, a loose forward, and Braydon Ennor, a wing - are players of real quality who have come through the red and black system and will be expected to perform as soon as they get an opportunity.
There is a conveyor belt of talent in the south, but it took the arrival of Robertson to unlock it in his first year. The challenge for him will be to back it up.
The challenge for Umaga will be to still be in the hunt in July and August - traditionally the worst of months for Blues fans.