While watching a game, most of us are at least peripherally aware of the effect that a play’s design has on the outcome. Obviously, there are many facets to that, but one that has an almost immediate impact is the depth of a quarterback’s drop. Typically we think of this in terms of one-, three-, five-, or seven-step drops, plus things like designed rollouts or running back screens. 

We intuitively understand the effect that a quick-hitting or slow-developing play design can have on a quarterback’s success, but often we don’t operationalize that understanding when reviewing a player’s statistical profile. Sports Info Solutions (SIS) started charting drop depths in 2018, which allows us to dig into this. 

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