I love the visualization. This is taking a single feature for each player -- at what level they are playing -- and visualizing its change over time with bouncing balls. It's not clear to me if the balls spend time at each relevant level, or if they just drop to the "current" or "final" level that the player achieved. The level is discretized, so this also allows for clear visualization. You can see that high school rank is correlated with final level -- but it's not perfect, and indeed the visualizations with lower-ranked players are also enlightening.
I'm looking forward to seeing where our Michigan players end up in the next few years and beyond!
