The team is improving! Diamondback team defense (as measured by season DRS in The Fielding Bible) has steadily increased from 20th at All-Star break, to 14th on 24 July, to 11th on 12 August, to 9th on 2 September to 6th on 21 September. Very impressive!
Let’s compare the Diamondbacks’ actual wins to the path to 72 wins presented in this AZ Snake Pit article. The Diamondbacks are 3 games ahead of the pace shown in the following diagram. Although reaching 72 wins has become very likely instead of optimistic, it remains a meaningful milestone.
Winning the series would be enough to immediately reach 72 wins.