Complex sentence: Meanwhile, shortly after Lalas brief stint with the MetroStars, he moved on to become the general manager of the Galaxy, who failed to make the playoffs during both years of San Jose's hiatus from the league.
Split into simpler sentences: Meanwhile, shortly after Lalas brief stint with the MetroStars, he moved on to become the general manager of the Galaxy. Since then, the Galaxy has failed to make the playoffs during both years of San Jose's hiatus from the league.