He's basically rebuilding his technique. It's a pretty hard thing to do while playing FC cricket. I know he's nicking off a lot, but I'm a lot happier seing him making some effort to go back and across instead of staying leg side of the ball. The latter is effeminate and shows a lack of ticker.
If you're monumentally changing your trigger movement, and he is, it's not surprising you'll lose where your off stump is to some extent. So it's great he's moving his feet in a more orthodox manner, but he's still very much a work in progress I think.