The fear was palpable on TSN1200 this morning, especially from Lee Versage (generally universally cogent, but he seems to have a hate-on for the excessively talented Mitchell Marner for some reason) who went from Marleau being overpaid (arguable, yes) to the Leafs defence corps.
There are a ton of contracts coming off the books for the Leafs in a few years. If they can move JVR for another respectable d-man, they will have tremendously improved their team. Add Liljegren and Dermott down the road and you have an absolute, rock-solid foundation.
Marleau will likely see an uptick in points playing with these guys as well. Marleau chose wisely, while Thornton chose the comfortable pillow. I think we all choose that pillow at some point though, so it's not a bad thing.