Here is some extra on the subject:
w023/15p.14par.7ChristLeadsHisCongregation7
As in the first century, a small group of qualified men from among the anointed overseers now serve as the Governing Body, representing the composite faithful and discreet slave. Our Leader uses this Governing Body to appoint qualified men—whether spirit-anointed or not—as elders in the local congregations. In this regard, the holy spirit, which Jehovah has given Jesus authority to employ, plays a pivotal role. (Acts 2:32, 33) First of all, these overseers must meet the requirements set out in God’s Word, which was inspired by holy spirit. (1 Timothy 3:1-7; Titus 1:5-9; 2 Peter 1:20, 21) The recommendations and appointments are made after prayer and under the guidance of the holy spirit. Additionally, the individuals appointed give evidence of producing the fruitage of that spirit. (Galatians 5:22, 23) Paul’s counsel, then, applies with equal force to all elders, whether anointed or not: “Pay attention to yourselves and to all the flock, among which the holy spirit has appointed you overseers.” (Acts 20:28)