I'm not really sure that's true.
I think his value would be higher getting all of his appearances at 2B than roving around having to play LF, 1B, and 3B.
He played 33 games between LF and 1B last season. That's not a positive thing imo. Raley is obviously a better option at both, right?
Any time Moore's at one of those positions, is a disadvantage to the team, not a feature of his value.
It's negligence by the Mariners to field a capable team. Moore has had to pick up the pieces. They need to keep their bench players on the bench where they belong.