Melbourne Victory fans had to wait until Round 3 to see their first win after they came away with a 1-0 win over Newcastle Jets.
Strikers Ola Toivonen and Kenny Athiu are injured, as Barbarouses and Ingham played a more attacking role in last week's victory.
The new formation may well also accommodate glamour man Keisuke Honda as Barbarouses hinted this week he'll remain a target man even when Toivonen returns.
And today, Troisi said he was happy with the Kiwis leading the line up front.
"Kosta's not necessarily a traditional target man, Ola would be your target man," The playmaker said. "The formation we're playing, unless something changes, that's where he'll be.
“He's dangerous there and we've got a good understanding.
"I've played with him for a number of years now and he's a handful to any defence. With him and Jai up front last weekend, not many centre-backs will be able to catch them."
Troisi also added he could play as a target man, but would rather be the player creating chances.
"If there's a couple of injuries, it's a possibility," he said. "For the time being things are working out, I'm a bit versatile so if the boss needs me to play up there, then i'll do what I have to do to play my part in the team.
"I'll probably score more goals, but at the end of the day I like creating chances for the other boys."
Victory meet Central Coast Mariners at home on Sunday night.