McLeish has warned he may not get all the cash from Young's £20million switch.
Big Eck admitted: "I'm not so sure I'll get the whole lot - but there will be funds available.
"I'm getting bombarded now with hundreds of names and agents obviously think there's a big pot of gold there with some of the prices that I'm seeing. But it's not about that.
"There are targets out there - but we've got to trade carefully for the benefit and future of the club."