They decide which Mormon missionaries should be teamed up together. They make sure the young proselytizers stay healthy and safe. They shepherd these eager elders and sisters through any faith, physical or emotional crisis. In the end, LDS mission presidents can rank among the most influential church leaders in individual lives.

This week on “Mormon Land” — and in the wake of recent revelations about misconduct by a couple of former mission presidents — Jim and Jeanne Jardine, who oversaw the California Sacramento Mission from 2008 to 2011, discuss the roles of LDS mission presidents.