American evangelicalism has wholesale adopted the "every member a minister" exegesis of Eph 4. The larger issue has to do with the depreciation of the office of pastor. But, among the many other consequences and effects, we find evangelicalism pioneering the turning of every task and job at church into a "ministry." Naturally, insofar as evangelical worship services major in producing the "appropriate" emotional reaction in those in the congregation, it is a BIG deal. So, why not have it presided over by a worship "pastor"?
Maybe we need a business pastor to help run the mega church? Oh, wait, we already have it: "executive pastor."
When I was growing up, this change to "pastor" nomenclature for every church job was defended as an empowerment of the Body of Christ, an acknowledgment of the diversity of gifts in the Body, and an opportunity to affirm the various talents that the Holy Spirit distributes throughout his church. In practice, it has merely resulted in diminishing the office of the ministry.
But, what do I know? Maybe there is time for me to become a Pastor of Custodial and Housekeeping Ministries?