Not the first year, he definitely was the 2nd year.
And the #1 option in OKC has never been a real #1 option for a championship caliber team since Kevin Durant.
Both the usg and fga was higher for Russ than PG both years. And the heat of playoff failure has always been lambasted on Westbrook out of the pairing. So I don't see where this playoff pressure PG has had deal with will be any different on the Clippers.