When Stalin was alive the USSR wouldn't need to do that, it would be in a position of material and numerical superiority (roughly on par technologically) and thus on the offensive. It could very possibly have driven NATO into the Atlantic by the end of the first campaign season. Dropping A-bombs would probably be necessary to stop this from occurring.
OTOH if Stalin was in charge of Russia today, digging in at the Urals and waiting for winter isn't really a viable strategy. The technological landscape of today is very different to what it was in his day, and Russia has changed in general. Russia has been subject to negative population growth, and lost Ukraine, the Baltics, Belarus, Kazakhstan and the central Asian republics. It's <150 million people now, which is fewer than it had during WWII (~170mln on the eve of WWII). NATO is ~900 million people now. It is outmatched numerically, technologically, and financially. Stalling for time is only favorable to Russia if Russia can build a military sufficiently powerful to actually win. Stalling for time would, in reality, let NATO fully re-arm and drown Russia in a sea of war material the likes of which the world has never seen.
This is all moot, of course, since various NATO countries and Russia both possess significant nuclear arsenals, and they would not risk open war with each other for fear of this. And even if that wasn't true, nobody has the stomach for a major war at the moment anyway.
What happens if we factor in nuclear weapons? http://en.wikipedia.org/wiki/List_of_states_with_nuclear_weapons#Statistics_and_force_configuration
According to that, Russia, by far outnumbers every other country by a ridiculous amount in the EU, wouldn't Putin basically be able to level Europe without much resistance as I would presume the US are possible too far away to cause "as" much damage as they would like too.
Other thing to consider would be china, India and N.Korea for example. I think I read not long ago that india acknowledged their support, they have some serious man-power, then there is china, recently been doing military drills in co-operation with the Russians.
Are we convinced it would soley be West v Russian alone, or could it escalate into a war, that could pretty much end the planet.