When a vital organ (Ray Allen) is replaced, the replacement (Terry/Lee) could fail and be rejected by the body (Boston Celtics).  If this happens, the body including the head (Doc Rivers), heart (Paul Pierce) and soul (Kevin Garnett) will deteriorate (41-40 Regular season record and 1st round exit) and eventually die.

To cut short this suffering, this euthanasia has to be done as soon as possible (coaching vacancy in LA and Net's desire to have KG and Pierce) hoping that the head, heart and soul will go to heaven (Championships for the Nets and Clippers).

Pierce, KG and Doc had done so much for the Celtics and we cannot ask for more than them earning their championships somewhere else.