I disagree. I saw a team lacking enthusiasm that for stretches looked like it didn't want to be on the court. Not everybody, but enough of the starters.
Does anyone remember the season (late in his career) when Don Mattingly was moved from #3 in the order to #2 in the order? And that seemingly unimportant move completely wrecked his confidence and sent him into a depression for months? It was all the beat writers talked about at the time ... and whenever they asked him about it, he gave them a dissertation on how the #2 hitter is expected to do completely different things (bunt, move runners over, etc) than the #3 hitter (drive in runs) and he was now having to change his approach at the plate. And overnight, he went from the team leader to a guy who moped and moped? And everyone else in the world was like, "No dude, he just moved you up a space because we don't have two natural fits for the top of the order." Well, sometimes a person wraps their identities around something nobody else realizes is uber-important to him.
My best guess is Baker was crushed when he found out Young was the "point" guard this year and it affected his approach the entire season. Young was the ball handler; Harper was the primary scorer; and Baker acted like his roles on the team had been taken from him. And he spent a huge portion of the season with body language like he didn't know what he was supposed to do and he didn't want to be there - especially every time Young was on the court.