If you’ve been a high-performing full-timer, the transition to part-time work is especially challenging, whether the move is by choice or by circumstance in these tough times. You’re used to being around to respond to every blip on the radar. You’re a master at managing crises — and even better at crisis prevention. When going part-time reduces your availability at work, how can you remain rock-solid reliable for your colleagues without short-changing your own time and energy?