As much as different areas of the team have struggled to start the season, nothing has hurt the team as much as the goaltending. You can just see it deflating this team game after game. I was completely dead set against going into the season with this pair of goalies. I would have done whatever it took to rid the team of Campbell in the offseason.
I thankfully never thought the Oilers were Cup contenders with their current roster. I felt they could be if they made a few good additions this season, a goalie and a decent right handed d-man and also likely another bottom 6 forward. The Oilers were never Cup contenders as is coming into the season. I didn't think they would be this bad and I also think they will get better but if the goal is the win the Cup, even if they were 9-2, I still wouldn't feel they were a Cup contender with their current roster unless the goaltending was playing well and they were getting decent bottom 6 scoring. I never expected either of those to happen coming into the season, they have made the playoffs multiple times with those same problems.
The Oilers have also always struggled when McDavid is in a slump. If you count the number of wins in the last number of seasons when McDavid didn't have at least 2 points, it's not a very long list.