First let me say, BBall is right. Jeff Green didn't get better because Rondo was holding him back. The adjusted stats for context reveals that. Face it people, Jeff Green got better because Jeff Green got better. It had nothing to do with how Doc used him or who he played with or any of that. Jeff Green simply got better so he's earned the right to more minutes and a larger role.
One thing that bothers me about what's been happening. He's blocking more shots and more weak side shots. That's effort and timing. You know what else is effort and timing, rebounding. The 6'1" Rondo in 37 MPG this year averaged 5.6 RPG. The playing-much-better, 6'9" Jeff Green is averaging 4.8 RPG. If he can put so much effort into blocking shots, he can put that much effort into rebounding.
Rebounding, depending on how you view the game of basketball, could be the second or third most important thing a team does after scoring and/or defense. If Green doesn't want to put in the effort to rebound better, that bothers me. It tells me something about the guy and it ain't good.