For some reason I thought Campbell played a bigger role in Maye's fumbles, but after watching some highlights, I realized he was only responsible for 1, IMO:
1. The first one was actually on Moses' side. Campbell had his guy on the other side pretty well handled.
2. The second one was Drake scrambling up the middle and just got it punched out, nothing to do with the OL
3. The third one was 100% on Campbell getting beat immediately
4. The fourth one was on Campbell's side, but Drake had the ball for over 3 seconds by that point and could see the rusher was right on him, he really needed to get rid of it by that point. That's way more on Drake than Campbell.
I don't know if I have the plays in the right order here, but it accounts for all four. I'd really only say Campbell screwed the pooch on one out of four, and he was only even involved in two. Conversely, he recovered two fumbles himself which is very heady of him.