Hands down the JJ trade.
Trade a multiple time all star for a season rental of Rodgers and Delk.
Had we re-signed Rodgers, it would have been slightly better, letting him walk (to the nets, our biggest rivals at the time was suicide)
Taking away Richard Jefferson from the Nets and adding him to our team. Even without trading JJ for RR and Delk I think we make the ECF that year, or even make the finals, staying put. Either RJ or JJ could have started and the other could have been a great 6th man....especially in year 2.
Richard Jefferson, served the Nets very well, even as a rookie, averaged 10ppg that season and then had ppg averages of 16,19,23.
Had Wallace drafted properly in 2001 we should have walked away with Richard Jefferson at #11. Along with Joe Johnson at #10(let's forget Forte at #21 ). Most people thought BPA after JJ was either Richard Jefferson or maybe Troy Murphey.