Celtic manager Gordon Strachan has voiced his frustration at being unable to compete with Coca-Cola Championship clubs in the transfer market.

The Hoops have added Gary Caldwell, Kenny Miller, Jiri Jarosik, Derek Riordan and Evander Sno to the squad but have missed out on Jimmy Floyd Hasselbaink, Jan Vennegoor of Hesselink and Diego Tristan.

Now the Celtic Park boss has urged fans to remain patient as he attempts to strengthen his squad and balance the books.

Strachan told The Herald: "We live in a budget world that is not even a (Coca-Cola) Championship world.

"A lot of the fans know it because they are intelligent people, but there are one or two not intelligent enough to pick it up and they are the ones who cause most bother.

"What the fans would like to see is more 'guaranteed' players. Tottenham have paid £11million for (Dimitar) Berbatov, Manchester United pay £18.5million for (Michael) Carrick.

"Cameron Jerome costs £3.5million from Cardiff to Birmingham. That's in the Championship. Where do we go? It gets harder and harder to find something.

"I knew what it was going to be. Gary McSheffrey is rated at £3.5million at Coventry. It's frustrating but I just have to deal with it.

"I speak to Gus MacPherson and John Hughes (St Mirren and Falkirk managers respectively). We all think we have budget problems, we just get on with it. I suppose Mr Le Guen (Rangers manager, Paul) will feel the same."

But Strachan accepts the situation and enjoys a healthy relationship with Celtic chief executive Peter Lawwell.

He added: "I deal with Peter and it has been fine. I know his problems and what he is trying to do - make the club self-sufficient - which it wasn't for a long time.

"I think they would never like to get in the state they were before, when Jack McGinn was chairman.

"I'm fine. I understand his job, he understands mine. There are days when I say, 'Come on, Peter, give me loads' and days when he says 'think about me'. We could do with some personalities."