Jahdae Barron from Texas who I recall a lot of talk about being one of the top corners in college, and Maxwell Hairston from Kentucky who had a shoulder injury. Both ran sub 4.4 at the combine.
The Michigan guy who everyone was trying to say was better than BenMo didn't get picked in the first either, so it is possible that even if he didn't get hurt, he would still have ended up in the second round.