Ettore Messina coached Mikhail Prokhorov's CSKA Moscow to two European titles. Now with Real Madrid, Messina calls his old boss "a business genius with a sixth sense of when to buy and sell, an expert in the interpersonal relations" who leaves key decisions to those he hires. Will Messina follow Prokhorov to the NBA? "Very difficult", he says. The system is "not open" to a European becoming a head coach.