There is the defensive record on shifts though where we rank (or did as of a month ago) among the worst in baseball.
Yes I have some biases based on my own experiences but there is no reason to assume that the smart 24-year-olds in baseball are better than the 24-year-olds in similar positions in other industries. And I completely agree that older people tend to be set in their ways. But I have also seen lots of situations where younger people misuse their data and I see this because I have the experience as a data person. I also have played 30 years of baseball so that helps the perspective a bit too.
Another example from my political world about data is that the Obama kids only learned how to campaign from a position of having virtually unlimited resources. When faced with adverse situations in 2010 and 2014 and 2016 they made bad decisions because they had not operated with limited resources or in situations where their volunteer-based model would not work.
The Phillies success this year is based largely on a core of young players maturing and getting better at the same time. On the pitching side that includes Nola, Velasquez, Pivetta, Eflin, Arano, and Dominguez. On the hitting side that includes Franco, Williams, Hoskins, and Alfaro among those improving. Management also added key veterans (Santana, Arrieta, Hunter, Neshek) that collectively have performed about as expected.
There is much more evidence that it is old-fashioned baseball moves and young players maturing that has made the Phillies a good team and NOT the analytics which if anything are only responsible for a game or two here and there along with evidence (the shifts) that they are not perfect. I have no reason to believe the Phillies analytics team is bad. They are probably smart kids who are trying a bunch of things. I am just not sure any of that has really helped the team that much. Their anti-defense strategy is pretty provocative. I am sure they have a theory as to why it should work, but I doubt they really know that. In my work I design tests and experiments with treatment and control groups to see what works and what does not. Baseball teams can't do that.