Making a wrong decision is understandable. Refusing to search continually for learning is not.
Eliminating what is not wanted or needed is profitable in itself.
Problems breed problems, and the lack of a disciplined method of openly attacking them breeds more problems.
When in doubt, delete it.
The cost of quality is the expense of doing things wrong.
If anything is certain, it is that change is certain. The world we are planning for today will not exist in this form tomorrow.