Be sure you know the condition of your flocks,
give careful attention to your herds;
for riches do not endure forever,
and a crown is not secure for all generations.
There are many applications for this verse. One of them that popped into my mind right away was for a Christian School. So many times a Christian School starts off so good. Excellent spiritual emphasis, adherence to the Bible, high moral standards with the student body, etc. But after some years have passed, the good thing that they had is gone.
A big example of this is Harvard. Originally a school that was to train men for the ministry, now the name of God is far from being glorified there.
As a leader, know the condition of your flocks. Pay attention to your herds. The good thing that you have now will not last on its own.