New Chelsea boss Guus Hiddink is causing controversy in Russia.
Top Russian coach Gadji Gadzhiev rapped: "Before he was able to focus solely on managing Russia.
"Now, if Guus is going to combine his work with us with the Chelsea job, he'll need to split himself in two. He cannot concentrate properly on one team.
"We live in the real world. We shouldn't try to turn anyone into a god. That includes Hiddink."
The Dutchman aims to balance four months of trying to revive the Blues with attempting to get Russia to the World Cup.
He will earn £2.5million from Chelsea to go with his £6m a season from the Russian Football Union.
Gadzhiev, ex-coach of crack sides FC Saturn and Krylia Sovietov, added: "Do you think England, France, Italy or Spain would allow this?"