Experts in a certain area have a different appreciation of what excellence is. My grandmother once asked a waiter if the mashed potatoes at the restaurant were good. The waiter said, “Yes, I like them.” After my grandmother ordered and ate the mashed potatoes the waiter asked her if she liked them to which she replied, “You don’t know what good mashed potatoes taste like.” Anyone who has had my grandmother’s mashed potatoes would agree that she is an expert at making them. Experts know what is excellent in a field and what isn’t. If a team wants excellence in a certain area that is lacking it, they must accept their limits and recruit an expert to achieve it.