The details of Lundy's contract have yet to be released, per Atlanta policy.
The Nittany Lions open the season at home against national runners-up North Carolina.
Pagliero has over 10 years of Division I hockey coaching experience and spent time on coaching staffs at UMass-Lowell, Colgate, and Holy Cross.
Five of the signings came via the transfer portal, while the team also snagged one high school recruit.
Pickett reportedly signed on to a four-year, $8.3 million deal with a guaranteed initial three years.
Gambino takes over after 13 years as the head coach at Boston College.