After seeing limited playing time during the first part of the season, Green was placed on the Fayetteville Patriots of the NBA D-League by the Celtics in January 2006. He was recalled and activated to an NBA roster position on February 3. He was reassigned to the NBDL, to the Florida Flame, on February 16. He was recalled and activated again on February 21, and saw his first significant NBA game action on the following night, scoring 13 points and grabbing 9 rebounds in 23 minutes.
It is interesting to see how he came up from the D-League and became an NBA all-star. He had to start as a nobody and turn himself into a somebody. His rookie year he didn't get to play or score a lot but then he turned himself into a scoring machine. It was like he couldn't be guarded and it was all because of how hard he pushed himself.