Academic careers can be difficult to reconcile with family life. The job market is tough enough for a single philosopher -- the chances of a couple securing work at the same institution are generally very slim. So, that sucks.
The best solution I've heard of is 'job sharing', which is just what it sounds like: two people, one job. It's a great deal for the institution: the couple applicant may have twice as many areas of specialization and teaching competence than usual, for example. And they may be expected to do twice as much research -- or perhaps even more, since each of the two individuals has only half the usual teaching load to bear. Yet they cost only a single salary.
Why does this not happen more often? Do you think job sharing is likely to become more common in future?