The legitimacy of Jarius Wright as the Minnesota WR3 for a few years prior to 2018 is debatable. He averaged slightly over 400 receiving yards per season, made big catches on third down, and was an overall good football player. However, that was never true-blue WR3 material like some NFL teams employ.
When he left after the 2017 season, the Vikings continued to push Laquon Treadwell as WR3, but the 1st-Round draft pick from 2016 never panned out. After that, the team surveyed players like Chad Beebe and Olabisi Johnson for the gig. Their success was more akin to that of a WR4.