Packers' breakdown...

i am very happy with the Packers' offense,because it is very good.. however,the defense is giving up too many passing yards,to be very happy,with the overall health of the team... being 8-0 is very nice,but one question:can the Packers stop anyone when they need to do it,at critical times? with the playoffs coming up,they need to tighten up their overall defense,and keep Rodgers fresh,and offense clicking on all cylinders;a better running game would help,to close out more games,and a tighter defense would show that the Packers are,really are,the best team in NFL... two,or three games,that have been close(points-wise) should not have been that close,if the defense had really played better,in the fourth quarter,and that makes this true Packers' fan quite angry...