You'd have to give up a lot.
Jaylen Brown + Jayson Tatum + LA/Philly/Sac pick + Memphis future first + change (if needed)
for
Anthony Davis + filler
NO already has Cousins and this team will prob stink next year. They would love to have multiple valuable assets and AD might want to leave.
Kyrie/Hayward/Davis core is young and good enough to win down the road w/ good role players.
To be brutally honest, I'm not actually sure if that gets it done.
Lets say we offer Brown, Tatum, Lakers pick, Memphis pick and spare parts...then the Cavs offer Jae Crowder, Iman Shumpert (who the Pelicans apparently like), Kevin Love and the Brooklyn 1st.
If you are the Pelicans, which deal do you take?
Honestly, I'd probably take the Cavs deal. Kevin Love is a perfect complimentary fit alongside Cousins, Crowder gives them a young, proven, cost controlled, two-way starting wing that they desperately need, and a defensive wing they supposedly really like. That Brooklyn pick offers a legit shot at a #1 pick in a supposedly loaded draft.
The Celtics trade offers two prospects who have very high potential, but are entirely unproven. A pick this coming draft that the might not even get...and if they don't then it's basically two picks that could fall god knows where. A lot of high risk/ high reward parts in that trade - not sure if that's enough or a sure thing for me to move my 24 year old once-a-generation franchise big.
The Cavs offer of two proven quality players plus a very high upside pick is probably more appealing. Love and replaces some of AD's production, Crowder fills a big hole on the wing - Pelicans likely get better now, and potentially land a future franchise player to replace AD via the draft.