Thanks for the post.
In addition to the importance of small things, the poem underscores the importance of a back up plan. It's hard for a leader to attend to every detail. The big picture requires delegating. And not every item functions up to specifications. I had a timing belt that broke on a car 2000 miles before the scheduled service for replacing the timing belt. Engine trauma resulted despite up to date maintenance.

So, it you're in a mission critical battle, have a back up horse. It's worth the capital investment. 

All the best,
Michael