Very interesting!
https://www.bigcatcountry.com/2008/2/25/203450/618
Calais Campbell, Miami: Campbell's struggles continue, as he capped a mediocre junior season with a poor combine. He measured just over 6-7 1/2 and 290 pounds, yet completed a measly 16 reps on the bench -- worst of any defensive linemen who participated. Campbell then ran his 40s near the 5.1 mark and looked winded at the end of the practice session.