Fangraphs takes a look at pinch hitters and of course, as you know, the Grits scored highly.
In case you are unfamiliar with the terminology, leverage index is as follows: if the LI is 1.0 it means the player pinched hit in plays of average importance. If the LI is higher than 1.0 they pinched hit in situations of higher importance. (Guys in scoring position, late in the game. Stuff like that.) Nothing in the table is weighted, and I guess that is okay. But if it were, depending on the weights, the Grits may have finished one and two.