The St. Louis Blues opened the year with a decent power play, but it has never been great all season long. The problem for the Blues is that it went from mediocre to painfully bad.
There were stretches where the Blues were scoring two or three goals in over 40 chances. That is just truly awful.
The Blues power play is still quite bad, statistically, even with a sudden surge of goals. Those goals have coincided with their turnaround on the ice and in the standings.
Another interesting coincidence is the Blues power play is clicking much better since Vladimir Tarasenko went out with an upper body injury.