The German could hand debuts to several players in next Wednesday's friendly with Scotland, but resisted the urge for more experimentation in lieu of building momentum
Osieck named new faces Ryan McGowan  and Jason Davidson  in his 20-man squad for next Wednesday's friendly against Scotland, with Chris Herd  another who could make his debut.
But the overriding reaction to the Australia squad was that it was unadventurous when there was room for experimentation ahead the clash with Jordan on September 11.
The Socceroos have another friendly, against Lebanon in Beirut on September 6, before they travel to Ammam to meet Jordan.
But Osieck denied the match at Easter Road should be used to introduce fringe players en masse because team stability was important.
"It's a similar situation as last year when we played Wales - the game is a very useful entrance into a very important next part of our qualifying group," Osieck said from Zurich on Wednesday.
"It will be the opportunity to have a look at a couple of players I need to see. Although, the scheduling is not ideal. It's pre-season and I'm not sure what form the players will be in.
"I will try to kill two birds with one stone. I will definitely have our core group together for the upcoming round but on the other hand I really want to show that I am still looking at additional options. Young players who show form with their clubs, they will be recognised as well so it's a double-edged sword," he said.
Osieck said he was strongly considering testing the squad's newest faces during Wednesday's match.
"I definitely want to see them in the game because it is not always enough to see them in training. I wouldn't guarantee them a start but they might get an opportunity later in the match," he said.
"Jason [Davidson] made a good impact at his club Heracles in Holland - he was part of the Young Socceroos a couple of years ago, but his performance level is rising and it's a good opportunity for him to join the [Socceroos].
"I had Ryan [McGowan] in the scouting camp we had in Germany last year and he did a good job. He was still young and a bit inexperienced then, but since he's become a regular starter for Hearts in the Scottish Premier League.''
Osieck and his staff will tour Europe and the UK following the Scotland match to give the rest of the other hopefuls the chance to impress.
"We have a decent list of players [to watch] and we will take the opportunity to take a closer look at these boys."