I'd say they were the same team, just playing against a very different opponent this time. Podolski was incredibly unlucky, normally manages to get most shots on target, but not today + missed a pen.
a win is a win i agree but in my opinion the serbian team was not very hard to beat either. i mean serbia played effectively they scored and when ever they had the chance to go forward on the counter they did and missed it so had germany concentrated they could've at least drawn. thats why imo i think they were a bit poor today.