Shumpert's recent failings finishing near the basket are not new. I had considered whether elevation/explosiveness were a problem post-ACL surgery.
The thing is that last year this was also a problem. He might be taking off too early, or his 2-foot jumping is giving opponents a chance to recover a little bit on defense and challenge the shots. He never resolved it last year and we see it happening again even now.
Unless he finds a way to correct this, it'll always take percentage points off his FG%.