Only those who have patience to do simple things perfectly ever acquire the skill to do difficult things easily.
-James J. Corbett
Good coffee does not only depend on the coffee beans and accessories. The skills of the baristas make a significant difference.
When I was travelling in Thailand, I had been inspired by many local baristas. One Thai coffee-lover said to me: “Bad coffee does not exist. There are only bad baristas.” He told me that baristas, who understand coffee and know how to work with it, will have no problem to get the maximum result out of each coffee. According to him, skillful baristas are capable to bring out the best aspects of each coffee, while covering its weak sides.