Julien is an example of a complete systems organizational failure. Julien was an 18th round draft pick, which in of itself hard enough task to make the majors. Julien basically had one tool, OBS with an incredible eye at the plate. They didn't prepare him for non-ABS umps where strikes can be called 2-3 inches outside the zone, especially for a rookie or young player. As we are starting to see with our other "stars" (Lewis, Miranda for example), that development didn't spend hardly any time in the minors on fielding. Part of the reason that Correa or Buxton continue to get a pass is their impressive defense. Bader keeps getting opportunities due to his defense. Even Wallner or Larnach (when not injured) have decent enough defense to stay in the lineup even when their bat is scuffling, which happens to all hitters at some point during the year.
I agree with @amjgt that Julien still has some developmental hope vs Clemens or Bride. Julien just needs to get reps, either for a future trade or to come back to the club. The other part, whether the numbers prove it out or not, is that on appearance, both Clemens and Bride provide better defense than Julien. If all hitting at the moment is similarly bad, you take the players with the better defense.