He is using reverse psychology. By saying the Vikings won't let it happen......then the Vikings will say, oh, we will show him and prove him wrong....they will call JJ and offer a trade.....
I think it would have the opposite effect. It was one thing for Jones to say he would consider making a move under the right circumstances than for Dez to suggest it would not be in their best interest.
I think there are many reasons why the Vikings wouldn't want to trade him to us.
1) They don't want Peterson to get what he wants.
2) They don't want to strengthen one of their chief competitors.
3) They don't want to turn us into a dynasty.
4. They're still bitter about the Walker trade.
5. They might think with their defense now, they have an opportunity with Peterson.