How is it possible?

After at least 5 years of running the dallara chassis at Indy for Penske and 7+ years for Andretti how is it possible for them to struggle so much? ...

Source: http://www.motorsportforums.com/forums/showthread.php?142255-How-is-it-possible&goto=newpost

Pentti Korhonen Tomoyoshi Koyama Ewald Kluge