I quite liked having Sterling on LW playing either Raumdeuter or IF Attack, with Markovic on the RW, playing either Winger - Support/Attack. I've since added players like Reus, Depay and Roberts to my squad, so I have to juggle them around a lot, but they all seem to perform well.
EDIT: Also test Wilson and Kent when you can, they are potentially decent wingers to support the main two.
wilson an kent turned out pretty poor in mine ojo an rossiter were the only 2 who became very good ojo has is turning into a beast