Moore was the 55th pick in a weak draft. He helped out in a couple of games in the regular season. I don't know that the expectations for him should have ever been high enough for him to be a bust, even if that's all he does in his career.
I do like Johnson, and think he can be a rotational player, but he needs to pick it up, no question about it, and certainly he's at a risk of not having his option picked up next season.