Of course he is.
And knowing that contract existed, Dubas made decisions that necessitated giving up a 1st to move it. It's a very easy plot to follow.
Common sense is all that is needed here..
Was Marleau's contract already on the books along with the kids on ELCs when Dubas was hired and then went out and spent $11 mil on Tavares regardless of the impact on the cap it would have?
What did Dubas expect would happen to existing contracts (magically disappear?), once he used up an unplanned & unbudgeted for $11 mil of available cap space on a UFA?
Anybody should be able to connect the simple dots that
as a fallout from the JT signing, Dubas chose to deal Leafs 1st rounder along with Marleau to recapture cap space to now afford to pay other RFA players.
Lou Lam had nothing to do with Dubas decision to sign JT, nor deal Leafs 1st to dump Marleau's contract, and he wasn't even in the organization when either of these transactions went down.
Lou Lam is 100% accountable for signing Marleau organically, just like he was 100% accountable for drafting franchise and future Hart trophy winning Auston Matthews, which he then both passed on to the new GM, nobody disputes those facts !!! However the cap hell problem didn't exist nor was Marleau last year on the books a problem if the new GM would have simply invested that $11 mil internally into the teams upcoming RFAs and not externally into a high priced UFA, and allowed the Marleau contrct to expire naturally.
Dubas didn't have to trade Leafs 1st only to lose in round #1, he could have done that similarly with Marleau and not needed Tavares to do so. However Leafs would still have their 1st round pick. Dubas thought he was improving the Leafs chances for a 1st round win, and as we have seen even 3 more playoff seasons later with his choice to sign JT that hasn't happened.
Now we have come full circle and Dubas is still trading 1st round picks to recapture cap space with the Mrazek trade yesterday, proving he still has no idea on how to build a winner, and the originally signing of JT as the ongoing cap problem, that was created by Dubas that puts the Leafs into CAP HELL annually without any playoff results to validate that decision.