Excellent post until you said that the Bucks botched every move from 2014-2018, conveniently picking 2014 and not 2013. You just can't make a case against management by ignoring drafting Giannis and making the trade for Middleton in 2013.
Nothing that has happened the last two years was possible without Giannis and Middleton. So it's a mixed bag.
The Giannis/Middleton moves were made about a week apart in the summer of 2013 by the Hammond/Kohl regime. They sort of stumbled into them, because other than those two moves, there was little personnel genius shown by Kohl or Hammond (either here or now with Hammond in Orlando).
2014 is when the new owners took over and brought in Jason Kidd. That new regime made an absolute mess of things. It didn't really get corrected until Wes Edens over-ruled Lasry by bringing in Horst and later Bud.
The moves the Bud/Horst team made were all to fit Bud's system. And those guys did one heck of a job, essentially building two 60-win teams. Bucks ownership needs to tread lightly here IMO, because any changes could bring about a much worse outcome.