Honestly, some of us only care that we accomplish the task, not that everyone does a fair share. There will always be a player who isn't doing as great as the other players, but as long as the boss can be killed, or the mission accomplished, as far as I'm concerned it doesn't matter. If that player is trying to contribute as best he can, so be it, we don't need to find and single them out. It's a team, not a one man army.