A coach is graded on what beats the baseline and travels.
Not on the golfers he was handed. The engine reads an instructor as a named actor with a measurable development signal, graded on whether his golfers beat the curves they were projected for, and whether that signal follows him. It measures his residual against those projected trajectories, splits the credit with the golfer and the program, and holds the portability test as the honest check. The read adjusts a golfer's projection, never his current KR.
A profile of pillars. Not a single label.
The engine rates the coach across his pillars, including a development pillar, do his golfers improve from their KR trajectories, and a scoring-and-strategy pillar, the course-management and shot-selection craft, not just the swing. It assigns an archetype, the technical swing rebuilder, the short-game-and-putting specialist, the strategy-and-scoring coach, or the complete developer. Each pillar carries its data tier and both confidence dials.
The read is a profile, not a single label. Where the signal is measurable, a swing rebuild that holds, the confidence is higher; where it is hard to attribute, short-game gains that could be the golfer or the program, the pillar is reasoned and read lower rather than inflated. The archetype names the shape, the pillars carry the detail. A coach is a profile of pillars with their tiers, not a single number stamped on a name.
Illustrative engine read on the real Mode 13 pillar structure (the development and scoring-and-strategy pillars, the archetype, each pillar tiered and dial-carried). Composite coach, demonstration figures.
Realized against projected. The gap is the signal.
The engine measures the coach as a residual: it compares his golfers' realized development against the trajectory they were projected for on entry, across a sample, and reads the persistent over- or under-performance as his development signal. The signal is largest at the fast-moving technical skills, a swing change, a putting-stroke rebuild, added speed, where a coach's hand shows up quickest.
A coach whose golfers consistently beat their projected curves is a real, quantified strength that re-prices every golfer he takes on upward; one whose golfers stall is a real weakness. The residual is confidence-gated on the sample and separated from talent acquisition, because developing golfers and attracting good ones are different skills, and only the first one is this pillar. Beating the projected curve is the signal, and it is measured, sample-gated, and kept apart from who he recruits.
Illustrative engine read on the real development-residual structure (realized versus projected-on-entry development, sample-gated, separated from acquisition, largest at the technical skills). Composite stable, demonstration figures, the residual model-derived.
A real fingerprint travels. A borrowed one evaporates.
The engine runs the coach through the portability test: does the development signal follow him across golfers and settings, or did it live in one gifted stable. A real fingerprint shows up across golfers; a borrowed one does not. Then it splits the credit between the coach, the golfer, and the surrounding program and technology, and separates the current read from the career read.
The credit split keeps the coach honest: the golfer's talent and work are the largest share and never the coach's to claim, and the program and technology take their cut too. The output is a coach read that adjusts the projection and its confidence, a golfer in his hands projects higher, and never a golfer's current KR, because coaching is a bet on development, not a re-grade of the present. A real fingerprint travels, the credit is split honestly, and the read moves the projection, never the current KR.
Illustrative engine read on the real portability and credit-split structure (the signal tested across settings, the coach-golfer-program split, the current-versus-career read, adjusting projection not the current KR). Composite settings, demonstration figures.
The engine measures a coach's development as a residual against the curves his golfers were projected for, splits the credit with the golfer and the program, and holds the portability test, because a real teaching fingerprint shows up in the next stable and a borrowed one evaporates. The read adjusts the projection and its confidence, never a golfer's current KR, because coaching is a bet on development, not a re-grade of the present.
The coach is the environment term. See what it adjusts.
The coach read is one term in the institutional bet, and it moves a golfer's development projection and its confidence. It sits beside the program and the caddie as the people around the golfer.