I think they tried to out skate the Russians in the first and use their speed in the bigger ice. But I think they ended up using too much energy and are gassed on a bigger rink than they're use to. They need to make better quicker passes instead of relying on speed.
They should have played like they did in those last two minutes the whole game. They just couldnt establish themselves all at until the Russians started playing Uber conservative in the last 2-3 minutes. Didn't seem like anyone could set anything up.