"It's not long ago I said it was important to bring someone in, but the way the team has played in the past few weeks, I think we have to now be very careful with what we do," Hasenhuttl said.
"I think the team deserve credit and the players who have been playing have done a good job.
"Also, the young guys that we've given chances to have perhaps developed quicker than we thought.
"We don't want to bring someone in that may block their development because as a club we want to develop these young players.
"The good thing is we can do something if we want but we won't do anything unnecessary - we don't have a must now.
"But if something makes sense and is really perfect for us then maybe we will do something."