The most absorbing debate around Melbourne Park this week does not concern the revamp of the Australian Open's show courts, nor the 50°C temperatures forecast for the middle of next week.
Rather, it revolves around the clutch of tennis aristocrats who will be attending the tournament - not as commentators or corporate guests, but mingling with the players in the gyms and locker rooms.
In a fascinating and unexpected twist to tennis' plot lines, Boris Becker and Stefan Edberg have both been recruited as coaches by a pair of modern titans, Novak Djokovic and Roger Federer.
Meanwhile, Michael Chang, Goran Ivanisevic and Sergi Bruguera, the former French Open champion, have taken on similar roles with players from the next generation.
What, then, does the man who started the trend think about it all? Two years ago, when Ivan Lendl joined Andy Murray's entourage, many questioned whether a first-time coach could unlock Murray's potential. Today, that question has been put to rest, and a giant of the 1980s has become as essential an accessory as a swimsuit model on your arm.