16th or 17th (via Mavericks)
The Mavs finished 42-40, tied with the Grizzlies. The NBA will hold a tiebreaker drawing (likely on Friday, April 15) to determine if the pick is 16th or 17th.
21st, 22nd, 23rd, or 24th (Celtics)
The Celtics finished 48-34, a 4-way tie with the Heat, Hornets, and Hawks.
Key Dates
April 15 (unofficial): Tie-breakers will be broken
May 17: NBA Draft Lottery
June 23: NBA Draft
http://www.celticsblog.com/2016/4/14/11429164/updated-boston-celtics-2016-nba-draft-odds