André Geraque Kiffer 
Alexander’s War, 336 — 323 Bc [PDF ebook] 

In the simulation at the military strategic level, an approach more in line with the Persian culture of indirect strategies should perhaps have explored its maritime situation further on the outside lines by conducting direct campaigns — albeit through agents such as Sparta — only in peripheries, delaying or avoiding land actions (most decisive battles) at their centers of gravity. A scorched earth policy, as suggested by Memnon, would have served this purpose, as well as meeting the difficulties in the flow of supplies from Greece caused by the Spartan actions to be faced by Antipater.