Let's keep in mind though that having great resources at your disposal, and a large circle of experienced and capable advisors at hand, does not necessarily create a lasting form of "action alignment" between those.
It is interesting in this context that none of his advisors or "immediate staff" ever strongly challenged Alexander in his lifetime.
They deferred to him till the last moment, only to basically be snubbed off by his famous "whoever's strongest" last words. Only then did they go for each others' throats.
It is of course possible, given historical records and "history is written by the victors", that his portrayal as integrative figure is flawed and more incorrect than not. The behaviour of the diadochs, the "infighting of the inner circle" which he apparently had contained in his lifetime, yet broke out immediately after, that make it likely that he brought some forms of "interpersonal skills" to the table which neither his father, nor his "successors" possessed in equal measure.
(my opinion)