Steve McClaren admits Nottingham Forest need to start bringing fresh faces on board as a matter of urgency.
The Reds have endured a frustrating summer so far, with considerably more players heading for the exits at the City Ground than there have been arriving.
Andy Reid remains the only signing of the current window, with the Republic of Ireland international brought back to the club for a second spell.
New boss McClaren is aware that one new recruit is nowhere near enough for a side harbouring ambitions of launching another promotion push in 2011/12.
He claims efforts are being made to get more bodies on board, and he is hoping progress will have been made by the time Forest head to Portugal for a pre-season training camp.
McClaren told the Nottingham Evening Post: "The squad is very, very thin. The nucleus is still there but now we need to build, get players in and add quality, leadership, depth to the squad and experience.
"We have Portugal next week and it would be great to see new faces there but at the moment, we don't have a squad big enough to work with. That is frustrating.
"We have lost nine players and added Andy Reid. So we are eight short. The sooner they come in, the better for me, the team and for the fans in order to get us ready for the start of the season."
One of those McClaren is hoping to see join the Reds in Portugal is Guy Moussi, who saw his contract expire at the end of last season.
Discussions regarding a new deal are ongoing, but Forest are aware that they have already seen Robert Earnshaw head for Cardiff after leaving contract talks until the last minute.
McClaren added: "Everybody is working so hard but we have to keep going and realise the urgency of the situation - we need players.
"Every deal is different but the chairman (Nigel Doughty), Mark Arthur (chief executive) and John Pelling (finance director) know the urgency, they know what we require and they are working hard behind the scenes to make sure they deliver what we need for the coming season."