I expect the big difference to be execution, not in basic principals. All the WP and in fact current wargames (you might be interested in the Sino-Russian Exercise PEACE-MISSION 2007) all reflect the direct principal that offence wins, defence at best is a tie.
With the exception of fire bases, I have not seen Russian Engineers are even taught the basic theories of the Kursk defence lines, which included LOCs to facilitate the reserves to the FEBA (strangely, no lines of retreat).
The Book at least leads me to believe that the Soviets would be more inclined to at pre-empt the American strike rather than waiting for the ground war. At the very least, they would be actively probing the American lines.