Steve Magness and Jonathan Marcus discuss the art and science of delayed training effects, arguing that training adaptations are non-linear, hard to quantify, and often misunderstood as quick “return on investment.” They contrast complicated vs complex systems, noting hidden variables and individual response rates that make simple timelines unreliable. Using examples from elite runners, David Krummenacker, and throws coach Bondarchuk, they explain how breakthroughs often reflect years of foundational work plus well-timed novelty, and how too much novelty too soon can blunt adaptation. They outline phases of stimulus response—introduction, accumulation (often fatigue without visible payoff), consolidation, and expression/peaking—emphasizing benchmarks, controlled testing, and managing impatience in a “now” culture. They close by highlighting coaching as both science-based and artistic, and plug the Running Scholar Program.

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The Scholar Program is our one-stop-shop for all things coaches education. It has 20+ courses plus an online interaction system with 500+ other coaches! And we’ve added a new course! The Igloi course. Sign up now for a free month off!

We also just added a brand new course with 80+ lectures on the training of Mihaly Igloi! We also added the Mike Smith tapes! An exclusive interview with the illustrious NAU coach.

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