It seems to me that Christian ministers are bad at working together. Every second week I feel like I hear the story of an assistant leaving because his* relationship with his senior has soured to the point where it’s best that they go their separate ways.
5. Management is a different skill to pastoring/preaching. When engineers move into management, they generally stop doing the stuff they were doing before. Same with teachers. Ministers are expected to do management on the side of everything else. It can be poorly done and other staff find this frustrating.
6. Church matters more than secular work. We are so committed to the gospel that every thing that detracts from it, every inadequacy in church, every conflict with our co-workers etc is amplified in importance. We find it hard to be satisfied with okay. We want to do the best that we can and it hurts us when we feel that others don't think we are working for the kingdom in the best way, or when we think that others aren't working as hard or smart as they could.
7. Families are involved in church staff relationships. If Andrew was a bank manager I wouldn't care about his workers' wives. I'd probably only see them once a year at the christmas party. We'd exchange pleasantries and that would be it. In church staff relationships, the pressure is on from all directions. Wives have to get along. Any tensions between the guys comes out in tension between the wives. Tension between the wives can influence the guys' work. It can all get quite complicated.
There's more to be said of the problem but that's enough for now. I'd offer solutions but I don't really have any. (No simple ones anyway except #1 - Define the authority structure, #2 - be humble, #3 - trust God.) Do you?
* I'm writing about guys here. I think that the issues with female employees/employers are slightly different.