A personal aside... I was called to serve in the Zürich, Switzerland Mission in 1980. The mission president (now deceased, I think), was called to serve in that mission just a few months before I arrived. Over the course of the next year or so, he sent home so many young elders who just “didn’t believe good enough” that the general authorities over that mission put him “on probation” so that he was required to consult with a general authority before he sent anyone home again. This was exactly the wrong sort of notoriety he wanted, as he was sure this calling as mission president was meant to groom him for a leadership position in the Utah Republican Party when he returned home. (There was an odd number of sisters in the mission, so I was paired with his missionary-aged daughter from time to time, which is how I came to learn these things.)
Serving as a mission president so far away from Utah and its political scene was torture for him, and he did not have the wherewithal to deal with doubting elders. Some of those elders were my friends, and I worried a great deal about their fate after they were sent home. Unfortunately, because of the gender differences and the undeserved shame they bore, we could not stay in touch.
Eventually, this mission president decided I should be sent home, too. A general authority intervened and had me transferred to a different mission to finish out the last six months of my time.
Mission presidents are human, too.