I think part of the problem is that he's basically being asked to be a spot up three point shooter. In all honesty, Eddie House could do what Doc asks Ray to do, and do it almost as well. If they really want to get Ray going, they need to run him some plays. Sure, 1-6 looks ugly, but he could have remedied the problem with some more shots.
In a lot of ways, this reminds me of what happened to Gary Payton on the Lakers. In the triangle, the PG is basically just a spot up shooter, which didn't fit Gary at all. Thus he struggled. Fortunately, Ray is an amazing shooter, so he can fit the role of spot-up-shooter. However, he'd be better and the team would be more dangerous if Doc ran some more plays for him.