In the last decades, big league teams have invested increasing resources in things like proprietary statistical analysis and data management, scouting and talent evaluation, yet chemistry and similar issues are still both largely viewed as important and evaluated using entirely subjective, rarely consistent and often tautological methods. Endeavoring to get more useful data so as to better measure and use ideas like chemistry and leadership seems far-fetched now, but a generation ago pitch-tracking, fielding data and other information we take for granted today would have been hard to imagine.