Borussia Dortmund executives reportedly held a crisis meeting into the night after the Bundesliga giants were hammered 4-2 at home by Rangers in the first leg of their Europa League play-off on Thursday. Chief executive Hans-Joachim Watzke, sporting director Michael Zorc, head of professional football Sebastian Kehl and coach Marco Rose were involved in the discussions, Sky television reported Friday. Dortmund denied the reports but Zorc was scathing about the team’s efforts and demanded better. “It was an embarrassing performance from the first to the last minute,” he told the Bild newspaper….