Khalil Mack

Optimist: Quietly motivated by a drop in stature — he fell from No. 3 to No. 19 in NFL Network’s annual Top 100 list, which is voted on by players — Mack takes advantage of having a healthy Akiem Hicks back and Quinn on the field to become a devastating weapon on every down again, with 15 sacks and 22 quarterback hits.

Pessimist: While still a quality pass rusher, it turns out 2019 was a sign of a career downturn more than Mack being a victim of double- and triple-teaming. And the reality is, at 29, Mack no longer is the devastating threat he once was. He struggles to match his 8.5 sacks of last season.