IT + Crowder + Zizic + BRK pick would have been better for Hayward and Horford. Heck, trading Tatum or Brown would probably be better for Horford and Hayward.
Danny is just talking out of both sides of his mouth. First it was that Kyrie fit our timeline better, with Tatum, Brown, etc. Now it's because Danny "owed it" to Horford and Hayward (two players IT recruited).
Just out of curiosity and an obvious difference in opinion, I would really like to see you conduct this exercise. Below is how I would rate each piece involved in the Kyrie trade as a percentage of Kyrie in value.
2018 Brooklyn pick: It has been reported that the C's best estimation is that this pick will fall between 5-9, myself a month or so ago said the pick is most likely to fall between 4-8. I would require at minimum 2 such picks and reasonable matching salary for a player like Kyrie. Value generously set at 50% of Kyrie.
I.T.: An injured I.T., that is 3 years older, on a one year contract, with an expectation of him returning in January with somewhat diminished skills would garner no more than 25% of Kyrie. Value 25%.
Crowder: I wouldn't trade Kyrie for 4 Crowders. Maybe again 25% value.
Zizic: Is worth nothing in my book as his player archetype is struggling mightily to even find a niche in today's NBA. Throw out 10% as a value even though he is likely not worth that.
50% + 25% + 25% + 10% = 110% and the Celtics are far and away getting the best player in the deal. I take that deal all day everyday.