The Apollo astronauts also had to rank each other, with that feeding into who got assigned to missions. (I'm not saying this was or was not a good idea - proba

The Apollo astronauts also had to rank each other, with that feeding into who got assigned to missions. (I'm not saying this was or was not a good idea - probably too small a sample size and they were all superstars - only that it was a thing that happened). [Source: https://space.stackexchange.com/a/23149 https://space.stackexchange.com/a/23149]