It should come as no surprise that quarterback performance improves significantly when there aren’t defenders breathing down signal-callers' necks. Last season, the average passer rating from a clean pocket was 97.3 compared to just 63.5 when pressured.
On a broader scale, teams averaged 4 more yards per dropback without pressure (7.6) than on dropbacks with pressure (3.6). While all quarterbacks see a hit to their production under pressure, some handle it better — and have to do so less frequently — than others. Using the difference in clean-pocket passing grade and pressured passing grade along with the percentage of plays a quarterback was pressured, these are the 10 projected 2020 starters who were affected the most by pressure last season.