Embattled Frankfurt coach Sven Kahlert partially silenced his critics with a gutsy substitution that paid dividends .
Turbine Potsdam 's victory may have been more comprehensive than that of German rivals ' FFC Frankfurt , but it was significantly less suspenseful .
Embattled FFC Frankfurt coach Sven Kahlert partially silenced his critics with a gutsy substitution that paid dividends .
Turbine Potsdam 's victory may have been more comprehensive than that of German rivals ' FFC Frankfurt , but it was significantly less suspenseful .