In 1 Peter 5 the Bible identifies those who shepherd the flock as the elders. It is not just one of the elders who shepherds. The Bible teaches that all of the elders are to equally shepherd the flock. This is because all elders are pastors. There is equality, and yet diversity among them; and all must strive to shepherd with humility.
Ephesians 4:11 And he gave the apostles, the prophets, the evangelists, the shepherds and teachers…
1 Peter 5:1 So I exhort the elders among you, as a fellow elder and a witness of the sufferings of Christ, as well as a partaker in the glory that is going to be revealed: 2 shepherd the flock of God that is among you, exercising oversight, not under compulsion, but willingly, as God would have you; not for shameful gain, but eagerly; 3 not domineering over those in your charge, but being examples to the flock.
In Acts 20:17 Paul, “called the elders” and said in Acts 20:28, “Pay careful attention to yourselves and to all the flock, in which the Holy Spirit has made you overseers, to care for the church of God, which he obtained with his own blood.”