​We’ve talked seemingly nonstop about who could be the Minnesota Vikings starting quarterback, but not enough about the receivers.The Minnesota Vikings quarterback competition between J.J. McCarthy and Kyler Murray has dominated offseason conversation, but one angle remains underexplored. What does Justin Jefferson think about this situation, and how much influence could the best wide receiver in football have on who wins the starting job?AdvertisementAdvertisementAdvertisementJefferson is the Vikings’ most important player and the most influential voice on the roster. The frustration from last season was visible, though. Jefferson’s weekly press conferences revealed how taxing the season was and that weariness should concern the organization.Vikings beat writer Matthew Coller did a spot with Yahoo Sports and discussed how the Vikings’ inability to win playoff games could weigh on Jefferson over time. It could present a scenario where Jefferson either becomes available via trade or declines a future contract extension. That hasn’t materialized yet, and it may never get there since it’s not something Jefferson is actively pursuing. But the fact that it was presented as a non-zero proposition is alarming enough for the Vikings to take seriously.AdvertisementAdvertisementAdvertisementMinnesota needs to maximize its best player, and doing so starts with the quarterback position.During mandatory minicamp, Jefferson challenged the quarterbacks to be better. He wants a quarterback who can deliver the football consistently and on time. McCarthy did not do that last season. He posted 19 big-time throws against 15 turnover-worthy plays, and while the big-time throw number is encouraging given fewer than 250 attempts, his 28% off-target rate when targeting Jefferson tells a different story.AdvertisementAdvertisementAdvertisementJefferson had an uncharacteristic number of drops, but that conversation has layers. Ball placement and tempo directly affect drop rates. When Kirk Cousins was throwing him the football, Jefferson wasn’t dropping passes. The placement was consistent, the tempo was predictable, and Jefferson could focus entirely on the catch without worrying about whether the ball would arrive at his right eye, left shoulder, or waistline.McCarthy didn’t provide that consistency. He posted one of the worst drop rates for a quarterback in the NFL at 10.8%. For comparison, Carson Wentz was at 3.5%, and Max Brosmer was at 6.0%. All three are small sample sizes, but they paint a clear picture of the little things.The arm strength conversation comes into play as well. McCarthy threw 61 miles per hour at the NFL Scouting Combine, 1 mile per hour slower than Joe Milton. He has good intermediate zip in the 10-to-25-yard range, but he loses velocity on deeper throws, doesn’t layer the football well, and throws with slightly too high a tempo. Paired with inconsistent placement, that makes life harder for every pass catcher.AdvertisementAdvertis