Who are the Overseers of Christianity? Who is shepherding the shepherds? According to the following verse, Jesus made it clear who the rightful Overseers are (or should be):

1 VERILY, verily, I say unto you, He that entereth not by the door [=correct doctrine, i.e., only what Jesus taught] into the sheepfold, but climbeth up some other way [i.e., another gospel], the same is a thief and a robber.
2 But he that entereth in by the door [follows what Jesus alone taught] IS the shepherd [qualified as Overseer] of the sheep. (New Testament | John 10:1-2)

Dial it back to what Jesus alone taught—in the four gospels. Only those who have done this are qualified to be Overseers. Because no one has obeyed the Gospel Our Lord taught, Christianity has not had an Overseer for many years and Christianity have been ruled by thieves and robbers—as Our Lord called them.