I was surprised by this too. But maybe he didn't think he was going to get the Magic job, or didn't think it attractive in view of their personnel "diaspora" underway. But I saw elsewhere the offer from CSKA described as "very lucrative." CSKA is one of the very best programs in Europe too. And the Head Coach that he'll be the lead assistant to, Messina, is well-known and well-thought-of. I'm guessing they knew each other from both serving the Lakers last season.
"Snyder will be the lead assistant under Ettore Messina, who served as a consultant with the Lakers last season before returning to CSKA Moscow"
I'm hoping this is no more than a 1-2 year learning experiernce, before he returns to Head Coach at a good team in the NBA...
Good luck Quin!!