What happened: Jason Kidd called Nelson a legend, great player, coaching genius and great person. The Garnett deal is receiving a fresh look 19 years later.

Why it matters: Nelson's influence across playing and coaching explains the tributes from NBA figures. The 2007 deal provides context for how franchise-altering trades are judged today.

What to watch: A celebration of Nelson's life is scheduled for Aug. 13 in Dallas. More tributes are expected before the gathering.