Here is my take on why Jeremy is struggling to find his rhythm offensively.
1. He looks to me to be at best about 85% physically. It will probably take at least a month or more before he is close to 100% in terms of his explosiveness and quickness.
2. His legs just aren't there yet, which affects his shot, which in turn has caused his loss in confidence, then it snow balls to just throw off his entire shooting rhythm.
3. He really pushed and tried to see if he could come back for the playoffs last year. This probably set him back at least a month or two. He should have just shut it down.
4. He wasn't able to really get in the gym until July and then he had his Asia Tour. Thus, he didn't spend enough time with Doc (they only worked together in July and about 10 days in Asia).
That being said, he'll still be very effective playing more like a Ason Kidd, Rajon Rondo type in the beginning of the season. Once he gets going and the spring is back, we'll start seeing the JLin we all know and love. I'm thinking early to mid December is when we start seeing the real Jeremy.