The Adam Duvall Debate
Earlier this week, I wrote about some dicey intentional walk decisions from the two NLDS series. One worked and one didn’t, but both of them were decisions managers made in huge leverage situations, and both managers tried to put their thumb on the scale of fate and influence the direction one way or another. Today, I’m going to talk about a decision that didn’t end up mattering nearly as much.
Brian Snitker tried to seize a small edge in yesterday’s Cardinals/Braves game, starting Adam Duvall in the outfield over Matt Joyce despite the fact that Joyce is left-handed and Jack Flaherty is a righty. It looked like a weird decision, one that might swing the game, but of course it didn’t. Nothing Snitker could have done, short of conducting a seance to channel the life force of a young Warren Spahn into Mike Foltynewicz, could have mattered.
The Cardinals scored 10 runs in the first inning, an endless deluge of offense, run stacked upon run. They added another in the second, and by the time Duvall stepped to the plate, our game win probability stood at 1.4% for the Braves, though the system doesn’t work well with such extreme margins. The leverage index of that at-bat was a measly 0.11, and it didn’t get better from there; his subsequent at-bats came with leverage of 0.02, 0.01, and 0.00.
So Snitker tried to make a small decision, and the gods of baseball laughed in his face. That doesn’t mean we can’t analyze his decision though, that we can’t evaluate it on its merits regardless of the actual outcome. If this game was played a million times, the vast majority would be closer than yesterday, and in some of those the difference between Duvall and Joyce would decide the game. Read the rest of this entry »