The Arizona Coyotes sent a shock wave around the NHL on May 4 when they hired John Chayka, then 26, as the youngest general manager in major pro sports history. Here’s what the aggressive GM has accomplished since then:

► Gave up a fifth-round pick to Dallas for the right to negotiate with defenseman Alex Goligoski before his contract expired. Then signed Goligoski to a five-year deal with the belief he will stabilize their defense.

► Made a draft-day swap with the Detroit Red Wings to move up to 16th overall pick to select defenseman Jakob Chychrun who the Coyotes had rated seventh overall. Chychrun has a shot to make the opening day roster. The Coyotes also got rid of Joe Vitale’s contract in the deal. They took back Pavel Datsyuk’s contract, but that won’t cost them anything because he has moved to the Kontinental Hockey League. The Coyotes also surrendered their lower first-round pick and a second-round pick.

► Dealt for former first-round pick Anthony DeAngelo from the Tampa Bay Lightning for a second round pick. He may play for the team this season.

► Signed free agents Jamie McGinn, Radim Vrbata, Ryan White and Luke Schenn.

► Acquired prize forward prospect Lawson Crouse as payment for taking back the contract of injured Dave Bolland. The Florida Panthers also got back a second- and a third-round pick.