I've only been in this department since April first. (Though with this company for 9 years, and in IT for 4 years.) I could probably do the work of my Team Lead, though it would be my first management position, and I'd need someone to go over the ground rules first. I think I could do it, but not as good as my boss does. It would take me a few months of adjusting before I was truly any good at it.