Saints could get to $14.61 million under the cap without restructuring Derek Carr, after Saints salary cap potentially increases by $5M

I don't see it, either. Some of these guys just don't like Carr and have made it personal. He is far and away the best QB on the team. Losing for the sake of a high draft pick or cap space is a loser mentality. Lots of teams have picked Qb's in the top 5 of the draft that didn't pan out.
it's not about Carr hate it is just business. The Broncos cut there best QB on the roster to try to reset. The Falcons traded the best QB on their roster Ryan and they are about to do it again with Cousins. The eagles did it with Wentz. The Rams with Goff. They saw that these guys weren't their future so they ripped off the band aide and moved on. So you have to do what's best for team.