Ryan O'Reilly, F:The 32-year-old signed a four-year contract July 1 and will likely be the No. 1 center. He had 30 points (16 goals, 14 assists) in 53 regular-season games for the Toronto Maple Leafs and St. Louis Blues last season and nine points (three goals, six assists) in 11 Stanley Cup Playoff games for Toronto. The winner of the Conn Smythe Trophy as MVP of the playoffs in 2019 when he helped lead the Blues to the Stanley Cup, O'Reilly is expected to provide leadership to a young team. … Luke Schenn, D:The 33-year-old signed a three-year contract July 1 and could play on a defense pair with Nashville captain Roman Josi. Schenn had 22 points (four goals, 18 assists) in 70 regular-season games for the Maple Leafs and Vancouver Canucks last season and led the NHL with 318 blocked shots last season. … Gustav Nyquist, F:The 33-year-old signed a two-year contract July 1. He had 27 points (11 goals, 16 assists) in 48 games for the Columbus Blue Jackets and Minnesota Wild last season and five assists in six playoff games. A four-time 20-goal scorer, Nyquist will likely have a top-six role, potentially playing alongside center Cody Glass. … Denis Gurianov, F:The 26-year-old signed a one-year contract July 11. He had 17 points (seven goals, 10 assists) in 66 games for the Dallas Stars and Montreal Canadiens last season. … Andrew Brunette, coach:The 49-year-old was hired May 31, replacing John Hynes. Brunette, who was an associate coach with the New Jersey Devils last season, had a 51-18-6 record as coach of the Florida Panthers in 2021-22. … Barry Trotz, general manager:The 61-year-old became GM on July 1, replacing David Poile, the winningest GM in NHL history (1,533). Trotz has 914 coaching wins, third-most in NHL history, during 23 seasons (1998-2022). He coached the Predators for the team's first 15 seasons.