I mean that's it in a nutshell isn't it? He doesn't feel like he's contributing. He still did, certainly - was starting to hit when he got hurt, showed clubhouse leadership at the start of the season embracing Moniak, and a team's a team - but I'm sure he's dying to have at least a Moment.
Next year could go either way, he's back to his old self or he's never that guy again.