I just spend 30 minutes with the trade machine (yes, I'm bored...).
Celtics in : Dāvis Bertāns, Derrick Rose
Celtics out : Daniel Theis, Carsen Edwards, Romeo Langford, 2020 2rd rd pick
Pistons in : Ian Mahinmi, Daniel Theis, Ish Smith, Carsen Edwards, Wizards 2nd rd pick
Pistons out : Derrick Rose, Blake Griffin
Wizards in : Blake Griffin, Romeo Langford, C's 2020 2nd rd pick
Wizards out : Dāvis Bertāns, Ian Mahinmi, Ish Smith, 2020 2nd rd pick
I am pretty sure that Detroit want to get rid of Drummond and Griffin. They are not better since Griffin is back from his injury. I doubt that Drummond will be a Piston by the deadline and they will tanking sooner or later. Mahinmi is $15 million expiring, Theis is a decent big, Smith a great backup and Edwards will improve.
Wizards are getting a promising rookie and a third Star to go along with Beal and Wall next season.
A lineup of Bryant/Griffin/Hachimura/Beal/Wall is not bad at all. The only problem : Beal+Wall+Griffin = $105 million
Celtics get a perfect fit with Bertāns, a mobile big who can make threes. Rose is having a very nice season so far, and he brings energy and scoring off the bench.
Kanter / Timelord / Poirier
Tatum / Bertāns / G.Williams
Hayward / Semi
Brown / Rose / Green
Kemba / Smart / Wanamaker