VENT LINE: What’s Minnesota Vikings QB JJ McCarthy’s floor and ceiling?

What’s the floor and ceiling for JJ McCarthy; Why McCarthy provides hope for Vikings fans; Who should be the Vikings backup quarterback; Who will be the best player on the Vikings defense this season and more on Vikings Vent Line. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .