Swiss star Alina Müller among PWHL Boston squad boasting depth up and down lineup

On paper, PWHL Boston has one of the strongest lineups in the league, with no obvious holes. 

They've got what could be the best one-two across the PWHL in net, with world champion Aerin Frankel and rookie pro Emma Söderberg.

They're solid on the blue line, led by Megan Keller and rookie Sophie Jaques.

There's also lots of talent to go around up front, between Hilary Knight, Jamie Lee Rattray, Loren Gabel, and Alina Müller, who's already one of the best players in the world at only 25.

Coverage of the first PWHL regular-season game on Jan. 1 at 12:30 p.m. ET (New York at Toronto) will be available on CBC Gem, cbcsports.ca, the CBC Sports app for iOS and Android devices, and CBC TV, beginning with a pre-game show at 12 p.m. ET.

The challenge for head coach Courtney Kessel is mixing all those ingredients together. 

"I definitely think the chemistry is coming along," Kessel said on Wednesday, noting that the team's practices have become faster and more physical since their pre-season trip to Utica, N.Y.

Boston opted to sit some of its veterans throughout its first two pre-season games, giving players who were on the bubble more opportunity to shine. But game three, a 3-1 win over Ottawa with Boston's roster at full strength, might have been the best glimpse at what the team can do this season.

"Our team's speed and our skill is off the charts, and also just our competitive nature," Frankel said during the pre-season. "We don't have a lot of girls in that locker room that are OK with losing puck battles. We want to win."

WATCH | Boston rookie Sophie Shirley talks about learning from veteran teammates:

For Boston GM Danielle Marmer, the pre-season confirmed her confidence in her team's drafting. It felt like Marmer got