IF the starting lineup can play some TEAM DEFENSE than we are not really in that bad of position. As long as the bench provides the sparks we will need..
A couple of years ago when it was Vlade/Miller/Peja/Chistie/Bibby we played some pretty good team defense, and had NO PROBLEM outscoring people. Our energy level would decrease as the game went on, and we would let a lot of teams back into it though.
As long as we play lights out offense, decent team defense, and have some of our bench players play some good individual D throughout the middle of the game than we will be fine. Now playoffs are a different picture. We will need to be able to play some shut down defense against a couple teams out there.