Overall, I give it a 'B'
That said, while it started off as a 'D' as Horford also was reportedly leaving, I think Danny did a phenomenal job afterwards.
AD didn't want to come here apparently and went to LAL. Kyrie was inevitably leaving, and then Horford was too. It all could have ended a disaster and with us in a pure rebuild.
Instead, we got rid of some more guys like Rozier, opened up enough cap space for Kemba, acquired Kanter and others and also drafted some great players at the spots we did. And added some more excitement by adding Tacko Fall later on
Wasn't our ideal off-season, but I think Danny deserves an 'A' for what he did after the initial dominoes fell (Kyrie, AD and Horford not coming here and/or just walking in FA).
That's how I look at it.
Also, I think Hayward, Brown and Tatum will get a lot more opportunities going forward as there isn't a big logjam anywhere