If I recall correctly, we were one lottery ball away from the Lakers pick conveying to us.

From the Boston Globe:

When the four-number combination was drawn, (Celtics assistant general manager Mike) Zarren realized that three of the four numbers drawn matched some of Boston’s combinations for the Kings pick. If the remaining ball had been a 10, 12, or 14, Boston would have received the pick. But the cigar Zarren had brought into the room as a good-luck charm as an ode to Red Auerbach didn’t quite have enough juice. The other ball was a 7, and it resulted in a combination that sent the fourth pick going to the Lakers.

Would've ended up with the 4th pick, which we could've used to draft Luka by trading up.