In the first 13 games this season, the Edmonton Oilers have allowed a total of 39 goals. Darnell Nurse has been on the ice for 20 of those goals against. 10 goals against are on the penalty kill, and 10 are at even strength.
Obviously plus minus is an imperfect stat for many reasons, including the lack of accounting for the Oilers poor goaltending at times, but this isn't a good look for Nurse. He's been on the ice for more goals against than any other Oilers defender, but is the third most used defenceman.
The Oilers biggest trade need this season will be a top four defenceman, hopefully to pair directly with Darnell Nurse and fix his game for the upcoming playoffs. For the Oilers to make another long run, he'll need to have a positive impact on the team - not be actively hurting them.