Based on his interview I predict a short running career to his runners. Beyond 2 hours a day you don´t get mitochondrial growth anymore, and injury/overtraining risks increases dramatically. He obviously isn´t a big believer of individualized coaching:
"What He Learned From Arthur Lydiard - Developing The Aerobic System Is The Key To Performance (61:30 )
"There is plenty of information to show that developing the aerobic system is the key to ultimate performance. You have to raise your aerobic ability and that comes from logging mileage consistently - year after year - and building that ability to run mileage year after year. Doing long runs virtually every week, year-round is beneficial and when athletes do that in a way that they stay healthy and they can be consistent then, they begin to run faster and faster.
"You can go back to Arthur Lydiard and that was really his point. How many people can run 59 seconds for 400 but they can’t break 4 minutes for the mile - so they need more endurance. So I think that has to be the foundation of everyone’s training. Luckily, a lot more coaches are going to a system where they are not afraid to run more mileage."
"What’s really interesting is we know the amount of mileage that athletes have to run to perform well" (64:40)
"What’s really interesting is we know the amount of mileage that athletes have to run to perform well. We know the training that it takes to be great. The problem is we can’t do that training yet so we have to take a step back and say I need to do this training to get that training. But we can’t do that training yet so we are three steps behind.
"My belief is that for our runners to be successful in the marathon, they need to be able to run between 120 and 150 miles a week. That’s what almost all of the great runners have done. We need to get them to that point and we need to be smart in how we get them there. Once they can do that, then we can step back and we can look at how can we push the pace faster, how can we get marathon-specific training going. And that’s what we’ve done with Brett – we took 2.5 years to build him where he can get into that zone and he’s just in it. We only had 5 weeks before the marathon above 120 with one week above 140 so he’s certainly getting in good volume, but I’d love to see us get in 6 or 8 weeks above 130 and average 135 or so.
"We just have to run more. You have to be smart in how you do it but you can’t be afraid of running more.
"When I was (working with) Dr. (Gabriala) Rosa, that was the time when Moses Tanui was running very well and winning a lot of races, he’d run maybe 170 miles a week on occasion. You can’t be afraid (of mileage) and the Japanese certainly aren’t."