Rockets & Nets rumored to have reached "verbal agreement" on Harden trade; Celtics still in the mix?

RealGM:

According to a report from Anthony Puccio of Front Office Sports, the Brooklyn Nets and Houston Rockets are nearing a deal involving James Harden. Puccio was one of the first reporters to reveal Kyrie Irving's interest in signing with the Brooklyn Nets in 2019.

While the deal isn't "official", sources say the Nets and Rockets have a "verbal agreement."
I'm not buying this rumor yet, but RealGM did post it and they are where Shams originated from so there's that. There's also this rumor out there: In order to acquire Harden the Nets would likley be parting with Levert, Dinwiddie, and Allen.