BTW you could measure command in a lab setting:
throw to a wall from pitching distance and mark a dot as a target. Then you throw a fixed number of pitches ( maybe eliminate the two biggest misses and the two closest as outliers if you want) and measure the average distance to the dot.
maybe that would be feasible for guys like Kyle.
i think velocity is more important than command but still it is interesting how much control can be learned. If it is genetic that would be an interesting information for scouts because that would mean that the wild thrower might never learn it.
it would be cool to do the mentioned accuracy test after players are drafted and a couple years later and compare. Of course you would need to do the test several times and not just once.