He is a bad GM, but he’s also as close to being fired as any gm in the league. You don’t trade your best player for picks and take on 35 million in dead cap or whatever the crazy number is, when you are already over the cap and have 50 players on your roster.
Not even Bill O’Brien is that dumb.
I get it’s fun to dream of adding a player like Mack, but it has to make sense for the team trading him too.