NOP can't win a series against them, but might be able to tire out KD and Draymond out.
ADavis has become a better post player this year (was never good in the post in his career) and can force GS to have to play McGee or Pachulia and that means that the Warriors can't play their best offensive lineups. Before this year, they could get away with allowing Durant to guard him in the midpost and perimeter meaning Green would be on Cousins.
Conversely, maybe GS takes its chances and forces AD to chase people around the perimeter if it stays small. It will be interesting to see if the matchup comes to fruition. It will be a great litmus test of sorts to see what wins out in smallball vs bigsball. But it's interesting that both AD and Cousins can shoot the three and should only get better at it. They could even play "5 out" if they wanted or "1 in 4 out." So many things at play here.
Maybe CP3 goes there and makes things really interesting.