Did they keep them based on spring training box scores, though? I feel like there's a correlation and causation issue you're missing here. Certainly in the case of Wisler and Harper, a refined pitch approach led to better spring results but without the underlying analysis that led to that altered approach in the first place, the shiny box scores wouldn't exist. So did the Twins look at the box score and make a decision or did they see individual potential, make analytical-based changes, and then base their decision on the changes they saw within that player? It's almost surely the latter, rendering the box score analysis somewhat irrelevant. And if the Twins were swayed by box scores, it was coupled with loads of more nuanced data and analysis we do not have, which makes basing opinions only on box scores really misguided. We're looking at *maybe* 10% of the data and challenging the decisions of people who have 100% of the data.