Emery struggled with his English in his time as Arsene Wenger's successor and Farke is convinced that made success all but impossible to achieve.
"Without judging anyone, communication is so important for a coach," he said. "It is the biggest tool you need to create a relationship between you and the players and also within the club and with the supporters.
"I don't think you have to be a native speaker in order to do this. Pep Guardiola, when he was at Bayern Munich, he was able to reply in German in his first press conference. The most important thing is that you find a way to bring your thoughts into the hearts of the players.
"The tactical details are important because they can make a big difference."