An uneasy feeling settled upon RFK stadium Saturday night. After going ahead 1-0, D.C. United conceded a penalty kick goal to New York Red Bull and a collective groan emanated from the crowd of nearly 22,000. Knotted at 1 after 45 minutes, the distinct possibility of an unfavorable home draw loomed on the horizon. Was this really the same team that sent 7 players to the All-Star game? The same team that routed the…