In a recent presser, Green Bay Packers outside linebackers coach Mike Smith emphasized the importance of evaluating pass rushers not through sacks, but through pressure and disruption. This has long been a tenet of the more stats-inclined community. Sacks are quite reliant on who is playing quarterback. They can be random. Someone can get a sack because another player pressured a quarterback into them. They also make up a very small number of total pass rush reps.
In order to better capture how good a player is at disrupting the quarterback, pressures have become all the rage.