https://elpais.com/deportes/2018/06/17/mundial_futbol/1529231093_256117.html
Please read this interview with Queiroz from El Pais. If you don't speak Spanish, let google translate run through it.
Queiroz wrote about integral training in the 80ies, that training a player is not that you train one day his stamina, another his technical skills, third day tactics but that you train them all together. The concept was later picked up by all modern coaches today, be it Guardiola, Klopp, Mourinho or whoever else. The way he talks about Iran and Iranian players and his outlook in life is amazing.
Honestly, Queiroz is the payback we had as football fans for all these years of Kiri coaches like Ghalenoie, Qotbi, Mayelikohan and whatever else. He is the best thing that ever happened to our football.