The real question is, should Danny have wasted a draft pick on Marcus Smart when Jordan McRae was still on the board? McRae is shooting .425 from the floor, .375 from 3, and .800 from the line. Better, across the board, than Smart. He's also played for 2 NBA teams this year which is 1 more team than Smart has played for. Last time I checked, 2 is better than 1.
But it's not just about individual numbers. Right now, McRae's team is 50-20 and first in the Eastern conference.
It seems like this was pretty obviously a mistake.