Fun fact about the Perkins deal that no one ever mentions: the Celtics also got an unprotected Clippers pick. At the time, the Clippers were coming off another lottery season (32-50, 8th-worst in the NBA) with no first-rounder (because they traded it to dump Baron Davis' salary), even with a healthy Blake Griffin shaking up the league as a rookie. The funny thing is that the pick the Clippers traded became Kyrie Irving for the Cavaliers.
So with a mediocre roster led by an injury-prone player and mediocre coach (Vinny Del Negro) in the Western Conference with no significant talent influx from the draft, the Clippers' pick looked set for the high lottery. It's arguable that the Clippers pick that Danny traded for was, at the time, more valuable than the Nets picks now. But then David Stern nixed the Lakers' deal for Chris Paul, eventually trading him to the Clippers. The rest is history.