Whatever Bruce Boudreau has done to energize the Washington Capitals’ woeful power play is paying dividends. Good luck, however, getting any of the Capitals to elaborate on their interim coach’s newfangled man-advantage strategy. “I can’t tell you,” Michael Nylander said with a smile. “Seriously, I can’t say anything.” Nylander had a goal and two assists, Alexander Ovechkin scored twice, and the…