NHL Power Rankings: 1-32 poll, biggest concern for each team

With a little more than two weeks of the season in the books, some early problems have emerged for each club.

In this week's edition of the NHL Power Rankings, we identify the biggest causes for concern -- whether it's a player, group, unit or something else entirely.

How we rank:A panel of ESPN hockey commentators, analysts, reporters and editors each send in a 1-32 poll based on the games through Wednesday, which generates our master list here.

Note: Previous ranking for each team refers to the preseason edition, published Oct. 9. Points percentages are through Thursday's games.

1. Vegas Golden Knights

Previous ranking: 1