The back end of the blue line.
Veterans Jarred Tinordi, Nikita Zaitsev, and Jaycob Megna are highly unlikely to be brought back. The Hawks' top two defensive pairings are set with Seth Jones, Alex Vlasic, Kevin Korchinski, and Connor Murphy.
Davidson still needs to add more blueliners to round out the group. Now, he could go with prospects such as Wyatt Kaiser, Isaak Philips, Louis Crevier, and Ethan Del Mastro.
Kaiser made the team out of training camp but struggled and then bounced between Rockford and Chicago. Philips and Crevier got some ice time when the defensive unit was ravaged by injuries in December. Del Mastro got a brief NHL experience too.
Davidson prefers to be patient with the development of his blueliners. Look at how long it took for Vlasic to get to the NHL and then stay there. Del Mastro might be afforded another season at Rockford since this was his first professional season.
Philips has some potential, but he also might just be an organizational defenseman who goes between the AHL and the NHL. The same goes for Crevier.
That is why Davidson would be wise to add a veteran or two and then let the preseason sort out who makes the team.