What sort of background in cricket does Bob Drane have?

Smith appeared to be struggling in overseas Tests as captain.

This One Day series against the Kiwis, played at home, with no significance  whatsoever, is hardly a measure of Smith's headship qualities.

He hasn't shown a lot of faith in lyon at times which has drawn criticism. Apart from that i don't remember many of his decisions being controversial? Do you mean his batting form?
Certainly hard to criticise his away form with the bat in tough conditions
Smiths away average is 57
he averaged 41.11 in sri lanka
67 in sri lanka
47 in England
40 in india
131 in New zealand
those numbers are sensational

Considering Warner, Starc and Hazelwood are the only other options he's not under any pressure at all.