What is your biggest weakness that's really a weakness, and not a secret strength?

What is your biggest weakness that's really a weakness, and not a secret strength?

I am extremely impatient. I expect my employees to prove themselves on the very first assignment. If they fail, my tendency is to stop delegating to them and start doing everything myself.
To compensate for my own weakness, however, I have started to really prep my people on exactly what will be expected of them.