This is what's both encouraging and maddening about Green. He clearly has the ability to be an excellent NBA player, like a borderline All-Star type if he put it all together. Legitimate third or fourth option on a contending team. But he only seems to show it in brief bursts, then fades into the wallpaper for a week or two.
I'm hoping as Jeff gets comfortable those bursts will get more and more frequent, just like how Rondo has learned to be more consistent over the years. But right now it's less about him being bad and more about him majorly underachieving on his potential.