Alex Pietrangelo is widely regarded as a potential No. 1 defenseman, a player who can quarterback a team at both ends of the ice. But Pietrangelo was not satisfied with his offensive contributions this season as the Blues approached the second half of the schedule. That's changed lately. By starting the play that wound up in T.J. Oshie's goal and a 1-0 victory over Dallas on Monday, Pietrangelo got an assist and continued a streak that now includes points in seven consecutive games. He has two goals and eight assists in that stretch.