Wbk is not only a Trefilov problem,russia coaching is horrible in all sports,football(what a mess),basket,volley,hockey and it goes on and on.
Even though I dont understand you with regard to Trefilov. He is big individuality with respect by all handball coaches in Russia (I daresay), and mainly because his work and successes are extraordinary. And btw I know from many people working in handball, that he is good "guy" in private life.
Sorry, but for me it is weak-minded to blame one of the most successfull coach in this sport.
p.s,interesting now apart from football all the other sports have russian coaches(blatt the exception).
What about Caprara, who was coach of russian women volleyball team for 4 years
In misc sports there were foreign coaches to take the national team, too. It isnt problem to take over the national team by outlandish coach. Problem is, that a lot of older coaches (soviet style) work with youth and this youth is growing up under specific conditions. You know russian sport is unique and success-intensive, so foreign coach is due to make big results immediately. But you dont need to be afraid. This coaches wont be here forever and even now I know some names (f.e. Nazarov in ice hockey) who are in compliance with your conception.