De Visser was also instrumental in the February 2009 termination of Chelsea manager Luiz Felipe Scolari and the subsequent installment of Guus Hiddink. According to De Visser, he alerted Abramovich of Scolari's lacklustre training methods: "I had to watch training sessions he was giving to the squad. I died of shock. It was so weak, his training sessions lacked every kind of sharpness. It made the entire squad lack sharpness in matches. I did not need a lot of time to conclude things were really bad with Chelsea."