Defenceman Darnell Nurse has had a lot of highs and lows throughout his season (and career) with the Edmonton Oilers.

Early in the campaign, he posted some of the team’s worst on-ice shot-share numbers and goal-differentials. But by early December we saw his performance and results turn around after the coaching staff played him more often with Leon Draisaitl, who has had an MVP-level season. As the year progressed, Nurse made some great plays and contributed on the score sheet. But that would again be followed up with blunders in his own zone, leading to opponents sustaining pressure and generating scoring chances. His game has recently improved, which is great considering the playoffs are coming up. But it remains to be seen if he can continue playing at this level.

This all led me to a pretty straightforward question: is Darnell Nurse having a good season?

To determine if he meets the threshold of “good”, I produced some basic criteria for a defenceman that is being paid $9 million per year:

There could be other criteria, but what I have above are things that correlate to scoring goals and winning games. It’s basically the bare minimum.

Nurse is currently averaging just under 23 minutes a game this season (in all situations), which ranks third among Oilers defencemen. And he ranks first in the average number of even-strength minutes (19 minutes a game). What’s interesting is that 25 percent of his even-strength minutes this season are against elite competition, according to the methodology used by Puck IQ. This is a drop from last season when Nurse played 30 percent of his minutes against top competition.

The table below shows a steady decline in Nurse’s proportion of ice time against elite-level competition (orange bars) throughout his career, as he was over 40 percent just three seasons ago. The 25 percent proportion he has this season would be one of the lowest in his career, indicating that the coaching staff is well aware of his deficiencies, and are actively trying to put him in a position to succeed.

Another thing worth considering is the steady decline in Nurse’s minutes on the penalty kill. Nurse is averaging below two minutes a game this season, which is a significant drop off from the last four seasons when he was regularly on the top penalty-kill unit. The graph below shows his average ice time per season over the course of his career, and is a good indicator of the trust the coaching staff has in the player.

Below are Nurse’s relative-to-team shot-differential numbers by season. I tend to use Corsi, a proxy for puck possession, and Fenwick and Expected goals as a proxy for scoring chances.

This is going to be the third straight season where the Edmonton Oilers have seen their shot and scoring chances numbers take a hit when Nurse has been on the ice.

Yes, he does play a lot of minutes and sees top competition. But as we saw above, those hard minutes are being reduced. He’s clearly not a player that can be relied on to drive play, and he’ll need to be with a strong defensive partner and high-end forwards as much as possible for him to provide value to the team at even-strength. Which leads to the next criteria.

When the Oilers have Nurse on the ice with the depth players, so no McDavid or Draisaitl on the ice, the Oilers have posted some pretty poor performance numbers and results. Their Corsi For percentage and Expected Goals For percentage both drop down to 46 percent when the depth players are playing with Nurse, which, as mentioned above, is why the coaching staff was okay with getting Nurse away from them earlier in the season.

The good news is that the results have been good, with a goal differential of plus-four (goal share of 55 percent), but that’s been largely luck-driven. The team tends to play less often with the puck when Nurse is out there with depth players, so it’s hard to have confidence in these results over the long run.

While we sometimes see some great plays from Nurse and his name on the scoresheet, it’s hard to ignore his usage, performance and results over the course of the full season. Expectations are rightfully high for the player, and unfortunately, he’s not meeting some basic criteria that correlates with winning games. The hope is that he can play well into the playoffs, but it’s hard to have confidence when we look at the data over a full season.

Based on his salary and role on the team, you would expect Darnell Nurse to be one of the best defencemen in the league, though you could make the argument that he might not even be the third-best defenceman on the Oilers. That’s a problem for management to address this off-season.

Data: Natural Stat Trick, PuckIQ