Some of the recent signings might just practice with Norfolk - last season we had a couple of late year signings that didn't suit up IIRC. Juniors and the AHL are worlds apart and while some guys can step in and help right away others will be out of their depth at first.
(...) the Rouyn-Noranda Huskies defenseman is described as hard-hitting, as his highlight reel is comprised more of fights than it is goals or assists. O’Brien has the potential to become a physical shutdown D in either the NHL or AHL, and is one of the best 6’3 skaters you’ll find that can also punish you with his hits.
That's a fantastic combination of skills. Hopefully he can become that at the NHL level.