What kind of amateur have you brought us? This is ridiculous. I'm not letting some infant who can't even synthesise phenylacetic acid teach me my business.
|― Benicio Fuentes talking to Gustavo Fring|
Benicio Fuentes was the main cook of the Cartel.
Jesse Pinkman was brought to Mexico teach Benicio and his team how to cook Blue Sky meth at 96% purity, but Don Eladio Vuente decided that Jesse was to stay and replace Benicio instead. Benicio, with his college degrees and expertise, was offended that someone like Jesse could be better than him.