If you go through my post history, you'll see that I'm far from a negative "expert". Making an opinion based on a ten game sample size is also dangerous as it causes a lot of risk, especially going into a new season.
I really like all four of those players, but as an organization that has had a weak point in a certain area, the worst thing we can do at this point is wish for the best case scenario from all of them, which can land us back to the place we were early this year.
The only legit top 4 value d men that can handle 82 games on our team are Hughes and Hronek. The legit bottom pair value guys we have that can handle 82 games are Dermott, Bear, OEL and Myers (and Schenn if he signs as UFA).
I would love it if any of Burroughs, Brisebois, Juulsen and Wolanin could bring bottom pair value for a full 82 games, but at this moment, with next season being crucial to start off on the right foot, we can't rely on them to provide more than 20-40 games depending on their experience.