J.J. McCarthy has started just six games for the Minnesota Vikings , but his reign as QB1 could end as soon as next season.

ESPN's Bill Barnwell wrote Thursday that the "best-case scenario" for McCarthy is that he is battling an established veteran for the starting job come next spring. The worst-case outcome is that he's QB2 and in need of an injury or some other sort of disaster to get back into the top job.

"If McCarthy returns from his concussion and shows signs of growth over the final month of the season, the Vikings should field competition for their starting job in camp next year," Barnwell wrote . "If he continues to look overmatched upon his return to the lineup, though, the Vikings might move forward with a new plan at quarterback, consigning McCarthy to a backup role afte

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