While defense tends to be underplayed in comparison to high-end offensive production or top of the rotation starting pitching, it is a massive advantage for a team to have excellent defense at a premium position like shortstop or center field.
In the case of the St. Louis Cardinals, no one in baseball has a better duo at two of the game's most important defensive positions right now.
Anyone who watched the Cardinals this year has been able to witness how special Masyn Winn is in his second full season manning the shortstop position, and Victor Scott II has used his sophomore campaign to allow his comfort and feel for center field to catch up to his elite speed out there.