Hello, I am a master student from Beijing Sport University, China, and I am also a technical and tactical analyst of the Chinese Football Association. I am very interested in the tactical periodization , and I have read nearly 10 books on the tactical periodization. But in China, no one knows this great theory, so my graduation thesis is going to take this as the topic of tactical periodization theory. Would you like to accept my interview? It won't be long, because I still have a lot of confusion about tactical cycle theory, and it's okay if it's inconvenient, sorry to bother you.