"Yesterday is gone and tomorrow is not guaranteed...so live today as
if it is the best day
of your life."  Many leaders I encounter are often stuck in the
past-married to old paradigms that no longer function. Some of those
"old paradigms" may be less than 10, even 5 years old. Some traditions
are much older and much harder to uproot, kind of like ivy. On the
other hand some leaders seem to be focused on the future hoping to stay
ahead of the curve and the competition and thereby not seeing the trees
for the forest.

I
occasionally and painfully take a personal inventory or ask
someone who knows me well to point out instances of where I seem stuck
in the past-holding on for dear life to a tradition, or looking ahead trying to see what tomorrow will bring. While painful at
times it does lead to growth, just as pruning a vine causes it to grow.
So go ahead, ask yourself or a close friend, perhaps your
mentor if you need pruning to rid yourself of old and ineffective
patterns of leading.