The relationship between the pastor and music co-ordinator is often a rocky one. Both can feel threatened by the other for different reasons.
The pastor is the boss, and in theory has the power to change the musical make-up of a church at a stroke — the musician will feel that his position is most shaky the first few months after the arrival of a new incumbent.
The musician, however, is someone who has a skill that the non-musical pastor knows little about, so can hold the pastor to ransom over issues of style and aesthetics. At the same time, the pastor acknowledges that music has the power to split congregations if it is not kept in check.