The Hoops' star striker has admitted that the situation is starting to harm the squad.
Neil Warnock has taken control of the Hoops on a temporary basis since Chris Ramsey left the club last month, while Jimmy Floyd Hasselbaink has been given permission by current side Burton Albion to speak to the Championship outfit, as revealed by HITC Sport.
Austin admitted that whether it be Warnock or Hasselbaink that is given the job permanently, the situation needs to reach a conclusion, or it could jeopardise the club's hopes of getting involved in the promotion picture.
"We'd like it nailed down and done as soon as possible," he said.
"Whether it's a new manager or if Neil is going to continue. That uncertainty is harming us and we need to knuckle down and be together as a group.
"It has been announced that we've been given permission to talk to Jimmy Floyd Hasselbank. But until it's done, it's not done, so Neil Warnock and Kevin Blackwell will take us forward," he added.
While the 26-year-old admits that the lack of answers is starting to frustrate the squad, the managerial situation has seemingly not affected his performances on the pitch. Austin came on to score the only goal as QPR beat Leeds United in their most recent game to elevate themselves into the top half of the Championship table.
And the striker will be hoping that he can continue to find the back of the net once the club's new manager is confirmed.