They kind of were already doubling down on defense at the time Monty was fired. They're a little tighter now but they were really good leading up to Monty's dismissal. Frankly, the biggest difference between Monty and Sacco is Sacco is getting more saves. That was always going to happen.Which is what Monty should have been doing instead of focusing solely on getting the offense going. When it was clear that the offense was going to continue to struggle, the only path forward here was to double down on defense. It should have a knock-on effect to both goaltending and even the offense. If the team is giving up less goals, that will release the pressure from the offense and we should start to see some improvement there.
The personnel is definitely better suited to be elite defensively but I don't think it is a sustainable way to play. They are generating the 3rd fewest xGF/60 at 5x5 in the league. The power play is more middling but the results are awful. This is where Sacco has some heavy lifting to do. They need to maintain the defensive structure while trying to coax this group to like a league average offense.
We'll see .