Squad rotation is almost the point of New York Red Bulls II. The reserve team is first and foremost a development squad, and it takes that mandate seriously by giving a lot of players time on the field over the course of a season. And the team is deep at almost every position. So when a regular starter misses a game or two, it doesn't necessarily mean much other than the coaching staff want to have a look at someone else.
Still, Devon "Speedy" Williams has been a regular and important part of the NYRB II lineup for the past two seasons, and he was not in the starting XI or on the bench for the team's 2016 regular season home finale:
STARTING XI vs @fcmontrealusl: Reynish, O'Toole, Schmoll, Carroll, Adams, Metzger, Najem, Bezecourt, Etienne Jr.