In reality, the fencing was holding up the post. At the start, good leaders raise up strong teams. But at some time during the process, if they're not on guard, spiritual and moral erosion can start to weaken their character. Externally, they appear to be holding up the team, but actually, the team is holding them up. Under stress, they cave.
Leaders have a basic obligation to maintain their foundations.
We can fool even ourselves by our positions and apparent success. Accountability, positive biblical input and frequent times of getting regrounded are essential to keeping the water of outside influence, pride and self-centeredness from eroding our foundations.