I think Brad thought "hmm... a 10-time All-NBA, 12 time All-Star, former league and finals MVP who's coming off a season where he averaged 30/7/6 is available. Sure, there's attitude concerns but the on court fit could be great. Maybe I should offer a 1-time All-Star, a role player, and a pick that won't matter and see if Brooklyn bites."
For the record, I am against the deal because I think Durant is a malcontent. But it's not crazy to recognize the logic of that offer.
If reports are correct that Jaylen is happy in Boston, I think it's short-sighted.
If JB signs a max contract here, we've got him under control during his age 26 through age 32 seasons. During that timeframe, we can reasonably expect all-star level of play, perhaps All-NBA level of play if he improves a very small bit.
Assuming Durant plays out his contract, we get his age 34, 35, 36 and 37 seasons, at an average of $50 million per year. Over the past three seasons, he's played a total of 80 games. He's also coming off a playoff sweep where he averaged 39% FG% and 5+ turnovers per game.
Add to that the value of Derrick White (who we traded a rotation player, a first rounder, a mediocre prospect and a pick swap for), plus another #1, and you're talking about fairly obscene value. Now, factor in the chemistry-changing potential, both with a trade and with a failed trade that leaks to the media.
Brad has a ready-made title team, built around defense and chemistry. He's now added depth to that squad. Why sacrifice the defense, the chemistry, and the depth for an ultra-talented but flaky, 34 year old likely to play in 50 games or so?