Back when I was teaching Christian school, the pastor asked me to teach the adult Sunday School class, the most prestigious class in the church. God blessed, the class grew, and the pastor's son-in-law decided that he should have the class. He openly stated that he wanted people to think of him as a leader of adults; he wanted the status. He and the pastor agreed to replace me without telling the class in advance.
Okay, I played some dirty church politics. I told a few people, the class revolted, and I got to keep the class. It is unusual for the Christian with little ability to win in a situation like that, but I did. And the class continued to do well.
In those few instances I know of when a person with a little ability keeps the ministry God has given him, despite the efforts of someone who THINKS he has more ability, the ministry continues to succeed.