See!
Remember when I said that I thought the team hated playing in front of Robin? I was wrong. I was seeing something, but it was actually the team just leaning on Robin too much because he's better than Chad. They don't feel like they have to try as hard in front of Robin, and so they don't.
Chad makes them uncomfortable and gives up more goals, so they have no choice but to work their nuts off in front of him to score. They HAVE TO show up ready to play for Chad.
This would certainly put a nice bow on all the scuttlebutt about the team not doing the right things in practice, or preparing for games, or being ready to go when the game starts. There's some kind of hive mind thing going on where the team just collectively relaxes when they aren't terrified of their goalie situation.
Maybe the Chad/Ullmark tandem is the way to break them out of this mindset.