Spooner disliked Claude, and Claude disliked Spooner. Who would've thunk it?
Claude used to call him out in front of the media after a tough loss because Spooner hadn't contributed or played like how Claude liked. Claude never called out his washed up vets. It was mostly someone like Spooner who played up to par wit the rest of the noncontributing members of his team, but he was always the one singled out.
It looks like Spooner knows that if he wants to be a center in the NHL, he needs to work on the defensive side of his game. That includes working on faceoffs. In the last few games under Cassidy, you can see Spooner being the 3rd man down low helping the defense out. He still has holes in his game that need to be fixed, faceoffs/board work/etc., but what people need to realize is that trust is a two-way street. Trust isn't immediately prevalent between two individuals, it needs to be built upon, and that was Claude's problem. Claude wanted immediate results. Under Cassidy, Cassidy is putting Spooner in a position to build that trust between Spooner and himself with Spooner playing on the PK for example.
This is nothing like Khokhlachev who complained and had not shown anything at the NHL level. If Claude is allowed to single out Spooner to the media, what is wrong with Spooner bringing up the coach not trusting him while placing blame on his game?