'We're not going to rush his development': What is the Vikings' plan for preparing J.J. McCarthy to start?

Key Facts

Jefferson, known to many around the Vikings' organization as "JJ," told McCarthy that moving forward he would go by another one of his nicknames: "Jets."
Later, McCarthy said, Jefferson offered a bit of advice that was especially valuable from a player who needed only two games as a backup in 2020 before bursting onto the NFL scene.
Like everyone else in Minnesota and around the league, Jefferson knows it's only a matter of time before McCarthy becomes the Vikings' starting quarterback.
How do you develop them?' And the things he talked about is the reason why I have so much faith in him to take and mold a player like [McCarthy] ... into that player we want him to be.