Sit Lebron.
Look at these stats: GS 32 assists, 12 TOs. Cavs 7 assists, 14 TOs. Nice assist ratio. Cavs just weren't ready to compete. I don't think they did it on purpose, but in these regular season games the Cavs just sometimes encounter highly motivated teams (as in Utah and esp. Portland last week) and just don't feel like meeting their compete level.