Aka, when do workouts indicate fitness and when do you take them with a grain of salt?
Ritz is clearly a legend in the sport, was at the top in HS, NCAA, USAs and even pretty darn competitive on the world level. The guy ran 12:56, 60:00 and 2:07:47 when those times meant something different. He spent years doing workouts with 2 guys who eventually broke 60:00 (Galen and Mo). Beyond his personal success, he has coached multiple people who have competed at the highest level.
Leading in to Houston half this year, it seemed that there was a lot fo hype for Joe Klecker, and it seems like Ritz directly fed in to that. Supposedly Ritz compared his 60:00 training to the stuff he was having Klecker do, and Klecker's training was more impressive.
A few questions: Do people train harder now than they did even 10 years ago? Are the shoes allowing people to stack Herculean efforts without fatigue or injury? Are the shoes making people over train when they would be better backing off?
How much of coaching is in the intangibles? Maybe on paper klecker was doing better stuff than Ritz, but salazar was a lot better and orchestrating all the dynamics?