Krueger detailed his defensive philosophy, which he described as aggressive in all three zones.
"It's, again, creating pressure at the puck and then as you move away from the puck and your role drops from second, third, fourth, fifth player, you will have more of a zone than a man focus," he said. "But at the puck, the aggressiveness is going to be important and what that does is stops those long, cycling shifts now.
"When we moved the blue lines, it changed the game. You need to, first of all, be much, much more aggressive at the blue line than you used to be so that entries become difficult. You don't want to give simple, soft entries at any point in time. So, it begins all the way up in the offensive zone. … I think that being aggressive before we even get into the D-zone will be the beginning of everything.
"But in the [defensive] zone itself, it's the aggressiveness at the puck and the support that occurs behind that with less of a man focus as you move away from it. It's not complicated, but it's hard work and you need to be always active and willing to work for your gap away from the puck. The other support guys will be critical."
Krueger said he believed improving defensive structure could help a player like Rasmus Ristolainen, who he referred to as a centerpiece moving forward. Goalie Carter Hutton joined The Instigators later in the show and talked about how improved structure could help his game as well.
Hutton described last season's defensive-zone play as unpredictable in comparison to his previous campaign on a veteran St. Louis team. As a result, he felt he tried to do too much at times.
"It's great," Hutton said. "I think Ralph is a guy that that's kind of his key point, tightening things up and having a little bit more structure. That's obviously going to be important. … Having that in and being able to bring that structure in is something that I think will help overall, just for our success."