First, my hunch is Michael Johnson will be one of the Vikings' top free-agent priorities. He's played and excelled in Mike Zimmer's system, and though Zimmer said on Thursday "it's not imperative" for him to have players who have played for him, he added, "it always helps because of the communication." Zimmer prizes clarity and shared responsibility on defense, and having a player who knows how it's supposed to work could be a big help.

Ben Goessling at ESPN