Two things I'm not liking here.
1. The coach is focusing on insuring lifters do not stop, then "grind" the weight up.
2. He asks his interviewer if he has heard of the saying practice makes perfect, then he tells him that it should be perfect practice makes perfect. I've got another view point on that.
For the competitive lifter, depending on his level of experience in the sport, he would utilise different strategies to make progress, without resorting to setting so many 1RM PBs / grinding reps. In other words, if someone was like I was 15 and starting out, I would’ve had to go through about 7 to 9 PB sessions in a year due to the amount of competitions I was involved in. However as one reaches the elite level, the number of competitions in a period of a year decreases accordingly. In that case, one may set a limit close to his personal best lifts, lifting say, at a 95% to 97% of his best every now and then. The only difference here would be the amount of sets and reps used, not only to insure that the lifter is physically on track, but to also psychologically be in touch with how the weight feels to him, knowing that he is using a higher volume of reps that are so very close to his 1RM. This insures the lifter does not risk injury, in addition to keeping on top of his ability to recover. So Vonfram88 is on the right track when suggesting a different approach to be used between younger/less experienced lifters, compared with their older and more experienced lifters.
The perfect practice makes perfect saying maybe good for some in my opinion, but not for all. Its principle is based on what I had already written in the above paragraph. So when a lifter is young and is still going through his complementary exercises sure, utilise the adage that perfect practice makes perfect. However I am of the opinion that as when one progresses in the sport of lifting, one needs only utilise my new adage of: perfect lifting makes perfect. In other words, if you're a seasoned Olympic weightlifter, you would drop all the complementary exercises that you used to use, and you focus mainly on the two actual competition lifts, i.e. the clean & jerk, and the snatch, and for brute strength, you add the front squat to the mix, and only use back squats if you're injured. That's it. Here, perfect lifting = you either lift that bar overhead or you fail. The line of power has to be spot on all the time every time. No need for a coach to keep an eagle eye on you to insure your line of power is perfect etc. anymore.
Some feel the need to include over 30 assistance exercises, in the way they break up these two OW lifts. I say yes and great in the beginning, where you may pick up on some weakness or bad habits etc. , but not later on when all the "formalities" have been well taken care of. I believe for an elite lifter, this is time optimally spent, with zero frills, frills that may derail the lifter's lifts, as well as eat into his ability to recover due to a higher workload (that in my opinion is misguided and mistargeted).