Wesley Mattice is the second hire under first-year head coach Brian Thomas, who took over the program in July.
Kevin Le Vine was an All-American goalkeeper at California and helped the Golden Bears to a national title in 2016.
Robles helped Rutgers to a program-best seventh place finish at the Big 10 Championship as an assistant coach and recruiting coordinator.
Experts said the policy changes will have a minimal impact on most schools, but will nonetheless change the way GW deals with its best players.
Coaches from half of the fall sports programs have been with their teams for no more than two years.
The Colonials battled against American Saturday after dropping three-straight sets to Howard on Friday.
A second-half hat trick by sophomore forward Oscar Haynes Brown helped the team earn its first win of the season 3–2.
The Mystics held the Sparks to 34.3 percent shooting on the night in Washington’s 96–64 win Thursday.
The Colonials will play just three teams from last season’s nonconference slate, when they went 7–6 before heading into Atlantic 10 play.
The Mystics clinched a spot in the playoffs in a 103–98 victory against the Phoenix Mercury Tuesday.