On the other hand, we're using a different system than Hynes deployed. In trying to be more aggressive offensively and take more chances [*], we're exposing the defense to more rushes. Maybe that doesn't explain everything, but Juuse doesn't have that same protective Hynes shell standing in front of him.
[*] I'm not sure if a defenseman literally diving for pucks in the middle of the offensive zone is "aggressive" so much as being dumb.
Though there is a different forecheck system both were high pressure. There were all kinds of odd man rushes last season because of the forecheck system being high risk high reward and the players not being urgent getting to their marks, hence, more risk than reward. Hynes actually used two forechecking schemes, one being passive, depending on the situation and so does Brunette but to a lesser extent.
I remember hearing on the broadcast last night that Brunette wanted guys to defend differently than I guess is typical, something about being with the player and going with them or something. They made it sound like it was causing some of Schenn's struggles.
Even with giving up more chances, all of those first 4 on Saros were very saveable, and are something you expect to be stopped by most NHL level goalies.
Gill was talking about the fact that Brunette wants the Dmen to be tight on their gaps, basically flowing around the Nzone man on man, where as Schenn is used to a more passive system waiting to step up and angle guys once they receive the puck or skate into his zone of the "trap".
It's a big difference for a guy like Schenn, he isn't the most nimble skater to begin with so asking I'm to continuously be shifting his hips and feet to stay in proper defensive position with a tight gap is a tough ask.
The whole idea is for the passing lanes coming out of the Dzone and through the Nzone to be completely cut off so the puck carrier has no option and hesitates long enough to be caught by one of the forwards. This requires two things, first, the Dmen have to be way up ice and not floating back in to the Dzone. Second, the forwards must be committed to "recovering above pucks" or classically called back checking hard.