And with the rhythm endurance work, flat speed endurance and possibly SE I work from 150m+ getting to those longer runs in a short to long is a long process: something I don’t program until probably Feb. at the earliest depending of course on when the athlete started training for that year.
Limiting training to 60m and jumps and avoiding the lactic energy system won’t elicit all the physiological responses to training, neuromuscular, metabolic, hormonal, anabolic responses etc.