Just like when they were on missions, they followed the same style of addressing each other based on their ranking, as they would use a type of dog that fit within those rankings as their alias.
If someone did not gain what they wanted and were unsatisfied with someone during the time they had paid for, then they could go through Cerberus to handle things, whether it was having the payments reduced for those people or to replace them with another.
There may have been opportunities to take on the tasks of other members, but they still had to carry out what was actually asked of them, just like any other tasks.
If they slacked off or did something wrong, then that would still end up affecting what they would be paid once it was all over, if they were paid anything at all for their time.
It would also be reflected on their record if complaints were made against them for various reasons.
