Rotoworld did a correlation study a while back trying to find the college stats and Combine drills that best predicted success for draft prospects. For DEs under 270 pounds, the most correlated college stat was actually TFLs instead of sacks.
https://www.rotoworld.com/article/numbers/nfl-draft-analytics-def?page=0
"15 of the 17 EDGE rushers who averaged at least 0.50 sacks per game in NFL seasons two through four averaged at least 1.0 tackles for loss in his final collegiate season."
Chaisson had 13.5 TFLs over 13 games, so he clears that benchmark, just barely.
FWIW, none of the Combine drills were that predictive, but the #1 was speed score. Chaisson didn't run at the Combine, but he probably runs a 4.6 at 6'4" 250. You name an athletic threshold, he clears it.