Subban, acquired for defensemen Steven Santini and
Jeremy Davies
, a second-round pick in the 2019 NHL Draft and a second-round pick in 2020 NHL Draft, should be a top-pair defenseman and will boost a power play that ranked 21st in the League last season (17.7 percent).
The 30-year-old had 31 points (nine goals, 22 assists) in 63 regular-season games and three points (one goal, two assists) in six playoff games for Nashville last season. He has 408 points (98 goals, 310 assists) in 645 regular-season games, and won the Norris Trophy voted as the NHL's best defenseman in 2013.
"We felt we needed to add a right-shot, top-two defenseman, and in P.K. we feel we got a big, strong player who can play both sides of the puck very well and against other teams' top lines," Hynes said.
Subban said, "The Devils have a winning history and I look forward to working with coach Hynes to become a better player, help this team become a better team, and ultimately to get to our goal of winning a championship."
Simmonds, who turns 31 on Aug. 26, will add grit and a net-front presence. He had 30 points (17 goals, 13 assists) in 79 games with the Predators and Philadelphia Flyers, including three points (one goal, two assists) in 17 games after he was traded to Nashville on Feb. 25. His 91 power-play goals since 2011-12 are third behind Washington Capitals forward Alex Ovechkin (149) and Tampa Bay Lightning forward Steven Stamkos (95).
Gusev agreed to a two-year, $9 million contract with the Devils after he was acquired for a third-round pick in the 2020 draft and a second-round pick in the 2021 NHL Draft. The 27-year-old never played for the Golden Knights after signing a one-year, entry-level contract on April 14 after he was named MVP of the Kontinental Hockey League. Gusev had 82 points (17 goals, 65 assists) in 62 games with SKA St. Petersburg.
"He's a right shot and plays left wing; he's a little like (Flyers forward) Claude Giroux in that he may not be the fastest guy but thinks the game at a high level," Devils general manager Ray Shero said. "With his great hands, creativity and imagination in how he plays the game, it was an opportunity worth taking to help us 5-on-5 and the power play."