Because they’re preparing to pay JJ and they need to see if JJ can play with other JJ who will essentially have a 5 year rookie deal.
Cousins and Jefferson would count as probably 60-80 million against the cap in 2025.
Why Kirk Cousins moved on from Vikings before being blindsided by Falcons
“….Minnesota played stingy with guaranteed money with the 35-year-old’s contract, reportedly being unwilling to guarantee the second year of a deal.
Cousins figured that, if he stayed, there was a good shot that he’d be on the move in 2025,” Sports Illustrated reported...”
https://nypost.com/2024/05/06/sports/why-kirk-cousins-moved-on-from-vikings-before-falcons-stunner/?utm_campaign=iphone_nyp&utm_source=pasteboard_app