When a player doesn't want to play in a place for whatever reason, that's called an "intangible," an idea, a state of mind, a feeling. When this player, Randy Johnson, leaves one team, say the Yankees, and moves back to the west coast, he leaves a blank space on the mound, which is a physical or "tangible" thing.
P.S. If you haven't followed Johnson's actual performances with the Yankees and rely only on selected stats, you can't possibly know what went on with him on this team. Unless you have a secondary hidden agenda (don't worry, no one cares) which motivates your obtuseness.