What I gather from this post is you think the Brooklyn trade is the only good one Danny has made and he took advantage of an idiot and that anyone could have done that.
Lets look at the Isaiah trade:
Isaiah Thomas for the corpse of Tayshaun Prince, Marcus Thornton, and Cleveland's first rounder that they gave us for the favour of taking Tyler Zeller. So essentially Isaiah Thomas, who is an all star, for a whole lot of not much. That's a tick in my book.
Lets look at the Jeff Green trade:
Jeff green out for the corpse of Tayshaun prince aka expiring money (flipped in the isaiah deal), Austin Rivers, Cash, and a 2017 First. Austin Rivers then gets flipped for a 2017 2nd and filler. Considering how Jeff is playing now and who he's playing for, that's a tick in my book.
Lets look at the Rondo trade:
Rondo and Dwight Powell for Jameer Nelson, Brandon Wright (who gets flipped for more picks), and Jae Crowder, plus protected first and second.
Once again, a tick.
Theres 3 trades AFTER the Brooklyn trade where Danny got the good end of the deal and pretty much debunk your theory of him being a one trade wonder. You also watch Jaylen play and develop and you're very much appreciative of Danny drafting Jaylen before Hield, Bender, Murray, Dunn.