yes. sessions tends to keep it. that is why he is better off the bench too. maybe it is the coaching staff not emphasizing it, but it was a problem for kemba last year and this year. granted, our big men suck but our guards have plenty of problems running the pick and roll. the bigs are pro's so you have to throw it to them or not play them.
FYI, thanks to Synergy Stats I was able to detect that Kemba Walker is currently having a better success rate at running the P&R than Chris Paul and Deron Williams.