Even in that dogshit Bellefeuille offense in 2015, he had 840 yards and 6 TDs. In 2016, he missed half the season with a shoulder injury. When he did play, he had just shy of 700 yards and 6 TDs (that's a torrid pace over a full season). 2017 was a monstrous season for him and that's probably the best offense we've seen on this team in ages. And despite the QB issues in 2018, he still eclipses 1,000 yards and scored 10 TDs. He's a hell of a blocker, he's got good hands, he picks up YAC yards consistently well, and his route running is solid. He's also got a bit of a nasty streak which is great for getting into opposing DBs' heads. (see: 2019 playoffs)
Adams can ball. I sure hope the team can keep him if at all possible.