The most practical solution: Hire new people. Let the low-bus factor people mentor the new people to become them 2.0 (long term). Downside: Takes time (and rem

The most practical solution: Hire new people. Let the low-bus factor people mentor the new people to become them 2.0 (long term). Downside: Takes time (and removes mentor from tasks deemed more important short term), costs money, people might need to get used to becoming mentors (I found most people enjoy this even if they cannot imagine doing it the first time around) Upsides: Long term thinking and investing in employees is rarely wrong (imo)