I doubt that either Phillips or Abramson gets an auto spot in the line up. Phillips is currently practicing with the team I believe so I would expect him to jump into the line up as in practice he should be developing some chemistry and getting used to the systems. I'm not sure what Abramson's status is? Is he on campus? Practicing? Or anything else.
Rest assured if the team is firing on all cylinders Sneddon isn't going to yank a guy that is playing really well unless one of these other guys is playing better in practice. There is a tremendous amount of depth right now on D and I think it's going to be the top 6 guys in practice that particular week and also the opponent they are playing. Clearly these two guys are kind of opposities with Phillips being more offensive and Abramson being more defensive. With the exception of Priviterra, Paliotta, and Luukko I don't see any of the D-men having a very long leash, too many other guys that can step in and fill the spot. Play well and get ice time... take a shift off, give up too many pucks, make bad plays and you are going to be on the bench.