The Tale of Two Leopards

An antelope grazes on the African savanna. The day is calm. The animal is unaware of a camouflaged leopard crouched in tall grass several dozen meters away.

In a blur, the leopard attacks. The antelope reacts instantly, reflexes sharpened by evolution, but on this day the leopard is young, fast, and precise. The chase is brutal and short. Sixteen seconds later the leopard stands victorious. The engagement is over.

Now imagine the same scene years later. The leopard is older. Injuries and infection have taken their toll. The initial burst is slower — just fractions of a second, but enough. The antelope runs. The chase stretches on. Minutes pass.

Eventually the antelope is brought down, but the cost is enormous. The leopard collapses, panting. It barely has the energy to finish the kill. When a pack of hyenas arrives, the cat cannot defend its prize. The meal — and the effort — are lost.

Where the Battery Actually Lives

About fifteen years ago, I began reading deeply about complexity, systems, and how living organisms organize themselves. One question kept pulling me back: what powers all of this complexity?

Systems do not organize themselves for free. Coordination, rhythm, adaptation, and resilience all require energy. In biological systems, that energy is produced by mitochondria — the cellular engines that drive life itself.

The battery also includes the central nervous system for neural drive and coordination, and glycolytic pathways that produce rapid power at a metabolic cost. When this integrated battery is high, athletes adapt, recover, and express power efficiently. When compromised, coordination and rhythm often degrade days or weeks before parents or coaches notice performance drops.

This is why fatigue almost always appears first as a loss of coordination, rhythm, and timing — long before strength or conditioning visibly decline.

Seeing the Battery Drain

If energy is the constraint, then perception becomes the skill.

When I was fifteen, my father gave me an old Sports Illustrated magazine with Dick Butkus on the cover. In the article, Butkus described his anticipation — watching for tiny twitches of shoulders, heads, feet, eyes. He could see the flow pattern develop before the snap.

That wasn’t luck. It was pattern recognition built through obsession. Coaching uses the same skill.

Battery drain does not announce itself with a siren. It whispers.

This is especially true in youth athletes, where coordination and rhythm often degrade days or weeks before parents or coaches notice performance drops.

If you wait for performance numbers to fall, you are already behind.

Li Yan — the most demanding and perceptive coach Greg ever worked under. She wrote the session after she saw the athletes, not before. Trends told the story.

Seeing What Others Don’t: Charlie Francis

Few coaches embodied this perceptual skill better than Charlie Francis. Francis rarely tested athletes formally. He tested them constantly — in how they ran, how they lifted, how they recovered, how they spoke.

When Ben Johnson was running 300-meter tempo runs for speed endurance, they tracked results over time and removed them. Johnson’s feedback was blunt: “It doesn’t make me faster. It just makes me tired.” Battery preserved.

When Johnson later injured his hamstring, Francis prescribed heavy bench pressing — not to build muscle, but to keep the nervous system primed. Strength maintained. Battery protected. These were not clever tricks. They were battery decisions.

The Rules of Battery Cost

Over time, certain truths become unavoidable:

The Only Three Decisions

In real time, coaches do not have infinite options. They have three.

How Li Yan Actually Made Adjustments

I remember arriving early to training in China. Athletes trickled in slowly. Li Yan stood in the corner, writing in her notebook. She was writing the session.

At first, I wondered why she planned it right before practice. Shouldn’t she already know what they were doing?

Eventually, I understood. The session was written after she saw the athletes. She ignored most physiological reports. She told the sport scientists she didn’t need them — she could see how the athletes were doing.

No single warm-up told the truth. No single metric decided the day. Trends told the story.

Youth and the Multi-Sport Reality

Youth athletes do not control their schedules. Sport stacking is the norm. Growth changes the battery weekly — sometimes daily.

Parents often interpret this fatigue as a motivation or effort problem, when in reality it is a logistics and recovery problem. This demands conservative systems. The younger the athlete, the more conservative the logistics must be.

Fatigue is praised as toughness far too often. Overdraw is mislabeled as work ethic. Both are mistakes.