Hearing news like this provides me a growing appreciation of what Danny has seemingly done twice now (trading for KG in '07, and having the assets to go after Davis in '19). Also why some people love what Hinkie accomplished in Philly.
You really need an asset accumulation phase if you're going to build a team through the draft and/or trades (i.e. not free agency), and a long term outlook. Look at both Danny and Hinkie, constantly tinkering and making moves when they're not a contender. Constantly acquiring picks, selling high, etc.
Look at Milwaukee. Haven't been a contender until this year. But what were they doing before that? Did they sell high on anybody? Did they acquire any picks? Did they have any long term vision other than riding Giannis to the top?
2013 - traded away rookie Tobias Harris for expiring Redick.
2014 - traded away Brandon Jennings (still good!), no picks back, but did get Knight/Middleton though
2015 - traded Knight for MCW (buying high) instead of taking the Lakers pick from Phoenix. Later traded MCW for Tony Snell, whoopee.
2015 - traded away a 1st (Anunoby) and a 2nd (Powell) for Greivis Vasquez. A backup guard on an expiring deal, they gave away a 1st for that?
2016 - a 33 win team, no trades!
2017 - only traded for expirings and Tony Snell
2018 - traded away a 1st for Bledsoe, dumping Monroe
2019 - traded away a 1st for George Hill, dumping Dellavedova and Henson.
No long term vision. No value for lottery picks like Jabari Parker, MCW, and now probably Thon Maker. Most of their trades involved them sending out 1sts instead of getting them back. Dumping several contracts that they signed (Monroe, Plumlee, Henson, Dellavedova).
These are the opposite of all the moves you want to make when you're rebuilding.