It was a very bad trade, but ultimately, it’s not among the worst because the pieces involved were good players, but not players of a historic nature.
I agree with clay (but please tone down the language): when talking about worst trades ever, you judge those on what was given up.
Thought experiment:
1. Celtics trade a Jaylen Brown level player for a Larry Bird level player; or
2. Celtics trade a top-55 protected #2 for a Marcus Smart level player.
Which trade is better for the Celtics / worse for the other team?
The thing about that trade was it was a 4-team trade in which all 4 teams arguably lost the trade.
The 4 teams received the following:
Lakers - Dwight Howard, Earl Clark, and Chris Duhon
Sixers - Bynum and Richardson
Nuggets - Iguodala
Magic - Aaron Afflalo, Al Harrington, Christian Eyenga, Josh McRoberts, Nikola Vucevic, Mo Harkless, Rodions Kurucs, 2013 2nd (Romero Osby), 2014 1st from Denver (Dario Saric), 2017 2nd (Wesley Iwundu), 2017 1st from Philly (De'Aaron Fox)
Obviously the Magic did the best, but they also gave up the best player in the trade and have had 1 winning season in the decade since. That trade precipitated the Lakers and Sixers going into multi-season rebuilds and the Nuggets had Iggy for just 1 season before he left in free agency the next summer (it was a sign and trade but the Nuggets only got Foye and a worse 2nd rounder). It was a 4-team trade that at best didn't work out or at worst was an epic disaster.
To your hypothetical, there is something to the idea that if you give up a player like Bird and "only" get a player like Brown back in return as being worse than giving up a player like Smart and only getting a future 2nd round pick in return, as the guys like Bird can alter a franchise more than a guy like Smart, however you still have a player like Brown in the Bird scenario. That isn't going to crush your franchise and set you on a path to destruction, like a trade where you give up 3 quality players and a future 1st for absolutely nothing. That is the type of trade that leads a franchise to conclude something like the process is the only viable path forward.
I mean here is an article grading that trade at the time.
https://www.cbssports.com/nba/news/grade-the-trade-magic-trade-dwight-howard-to-la-lakers-in-four-way-deal/ Philadelphia 76ers
Grade: A-
Well, so much for that "Spencer Hawes and Kwame Brown will start" idea.
The Sixers have talked so long about trading Iguodala and they finally pulled the trigger, landing a franchise center in the process. There's a lot to be concerned about for Philly. He's an expiring contract. He can be problematic on and off-court. He's got a significant injury risk.
But he's also the second-best center in the league. The Sixers have an offensive force to turn to, their biggest problem last season. Evan Turner gave them the ability to move Iguodala without positional loss. Losing Iguodala is a phenomenal talent out the door, but they get one back in Bynum. They needed to try and take a step forward. They did. Iguodala's skills were covered by Turner and Thaddeus Young.
They saw a chance to take a big shot at a superstar center, which Bynum evolved into last year. It was time to pull the trigger.
We'll see if they can hit their target.
They got nothing from that 2nd best center in the league.
And here is a recent look back, where they of course give the Sixers an F
https://www.si.com/nba/magic/news/dwight-howard-trade-orlando-los-angeles-la-lakers-denver-nuggets-philadelphia-76ers-sixersPhiladelphia 76ers
Bynum's career went right off a cliff after being traded to the 76ers. After his best season yet in 2011-12 where he averaged 18.7 points and 11.8 rebounds, Bynum suffered a knee injury that held him out for the entire 2012-13 season and he never played a game for the franchise. After 26 appearances the following year for the Cleveland Cavaliers and Indiana Pacers, he never played a game in the NBA again.
Richardson suffered a knee injury of his own that limited him to 33 games in his first season in Philly. He sat out the entire 2013-14 season and played just 19 games in 2014-15 before retiring from the NBA.
By parting ways with the team's last two first-round picks and surrendering an All-Star to get virtually zero production, the Sixers wish they had this trade back.
Grade: F