"Decision science is moving quickly, and is very open ... to new methods and ideas. You can really challenge things and make contributions," says decision-making scientist Carlos Trujillo.

Beyond the challenges, provided one is aware of the rules of the game, leaving academia doesn't need to be a one-way street--and may provide the opportunity to gain valuable skills.

If one comes well prepared, the practical issues associated with landing in a new country need not spoil the fun.

The challenges for pregnant scientists often come unannounced and need to be dealt with quickly; the stakes are high.