Firing someone who's always obsessed with work and willing to always spend hours upon hours to get things done might be a good idea for the reasons stated. Bet

Firing someone who's always obsessed with work and willing to always spend hours upon hours to get things done might be a good idea for the reasons stated. Better idea would be to send that person on a mandatory vacation during the doldrums between projects. Make them turn in the company laptop and company cell phone for the two weeks they're on vacation. If they protest, tell them that during vacation it's their job to rest, relax & recharge to be ready for the next project. By the time they're back they'll be ready to take on those challenges.