That was the last season we had a true WR1.
I think Equanimeous St. Brown could have had a very fine 2017 and an even better 2018, had Ian Book been the starter from the beginning of that season. He already had a very good season in 2016 (came close to a 1000 season) with Kizer as his QB, but nearly got his neck broken several times when trying to catch those errant passes from Brandon Wimbush in 2017.