Hutton and Ullmark have combined to produce a .956 save percentage at 5-on-5, second in the NHL to the Boston Bruins and one spot ahead of Buffalo's next opponent, the Anaheim Ducks.
The duo is working with a new coach in Bales, who joined the team this summer following two seasons as the goaltending coach for the Carolina Hurricanes. He previously served in the same role for the Pittsburgh Penguins, winning the Stanley Cup in 2016 and 2017.
His title in Buffalo is assistant coach rather than goalie coach, which Krueger said is more than just a name. In addition to selecting the team's order for the shootout - an area in which the Sabres are 2-0 going back to this preseason - Bales offers his perspective on other areas of the team's game from up in the press box.
"Mike is much more than a goalie coach," Krueger said. "… He's up there looking for specific things that we decide before the game and he's relaying them down during the game. Then also in our postgame analysis, he has a different perspective as we had on the bench.
"… Just a very wise, experienced coach. Although everybody has their specialty, he's much more than a goalie coach, for sure."
Though he works on technical aspects of the game with his goaltenders, Ullmark has appreciated Bales' knack for getting to know his goalies as people.
"It's different for every person that you work with and the same thing goes with goalie coaches," Ullmark said. "Some goalie coaches might not have the social skills or the mental skills that some other guys have, and some guys are way better when it comes to the technical part of the game. … Mike kind of brings both these things together in a very easy-to-understand mindset, for me at least."
Ullmark went on to explain that Bales is as concerned with his goalies' mentality as he is their play.
"We're just trying to build on good habits when it comes to coming into the rink, leaving the rink," he said. "I've very open. Hutts is very open. We chat about everything. Sometimes, you don't need to necessarily talk about being a better goalie. It's just being a better person.
"You might have a rough day or whatever. Then it's probably not the best time to start talking technical things. … It might be better to just talk and figure out that part first. Then tomorrow, we can talk about goaltending."