One of the themes in various pieces written about the Astros is the information they make available to the players.
Actionable information in corporate-ese.
JV was impressed and bought into it.
The hitters get reports on opponents and themselves. As much as they want or think they can handle.
Giles apparently turned his self-flagellated nose up at the info they tried to give him. He didn't buy in. Buying in isn't a guarantee for success, but it seems foolhardy not to do so.
And I don't care if they were drafted by Branch Rickey. Every player in the organization stands to benefit, including #'s 4, 27, 2, and 1.