Free agents cannot officially sign with new teams until Wednesday afternoon, but as usual lots of moves are all but done in the "tampering" period prior to Wednesday. That includes the quarterback merry-go-round, in which the Cardinals are forced to take part (given that they do not have one for 2018 yet).
The big move came Tuesday morning, when news leaked that Kirk Cousins will end up exactly where everyone posited he would -- the Vikings. That came the day after news that the Broncos would end up with Case Keenum. The trades that also cannot be completed until Wednesday are out there, so the Browns traded for Tyrod Taylor and the Redskins traded for Alex Smith. The Bills also will make a trade with the Bengals that got them the 12th overall pick (ahead of the Cardinals at 15) and still have 22 overall, giving them ammunition to get even higher in the draft. As of now, the Jets, like the Cards, still don't have a starter.
None of these moves preclude a ton of teams from potentially taking a QB in the draft in the first round. Cousins and Keenum always figured to be the first two FA QBs off the board. So now we see where Sam Bradford ends up, and Josh McCown, and A.J. McCarron, and Teddy Bridgewater.
One other thing to remember (after Ian Rapoport put out there that the Cards could have interest in Mike Glennon when he is cut by the Bears, as expected) is that the Cards need multiple QBs. That isn't just a starter. You want a backup too, and a veteran one even if you draft a guy high.
And to think, free agency hasn't even officially started yet.