The high amount of corner 3s in the prev Spurs incarnations were generated through constant penetration and kick -outs. It was great having prime Manu and Parker, wasn't it?
The Spurs of the last couple of years, after Parker's drop off, have no one who's good enough at dribble penetration, so they rely on different things because their personnel defines what they're able to do. It'd be great if Murray's game improves in this direction, he has the tools - a quick first step and speed, but his dribbling and finishing around the rim should be improved a ton.