After Dubas was let go last spring, questions immediately arose around Sheldon Keefe. Dubas took several staff members, including Jason Spezza, along with him to Pittsburgh. As it turns out, another Leaf may end up reuniting with Dubas and Spezza in Pittsburgh.
Honestly, if that is the return for Marner, I don't think it's in the Leafs' best interest to trade him. He's a 90+ point player who plays in all situations. Playoff performance aside, Marner is an elite player. He should be worth more than a middling defenceman, a mediocre starting goalie and a handful of futures. If that's what we can expect in return for Marner, I say keep him.