Newcastle United managing director Derek Llambias admits that the club cannot afford to keep bringing in players.
The Magpies have eleven top-class players in Llambias' opinion and he suggests that spending consistently may not be required even after fans called for defensive additions in the summer.
With Steven Taylor and Fabricio Coloccini currently injured, Newcastle are believed to be short on central defensive players but Llambias is convinced that there is enough cover in the back as well as all over the pitch in Alan Pardew's squad.
"We've made it quite clear to everyone. We have 11 positions that are grade A players or Purples, as we call them," he told the Northern Echo.
"Then, under them, we have the players who come in under them to take the positions so the squad gets bigger.
"Eventually we'll have 33 players who will be pushing everyone. Where we are we have, in effect, 11 Purples if you count (Vurnon) Anita. He can play midfield, right-back, left-back. They are there. Centre-backs you have Colo and Steven Taylor, who are fantastic centre-backs.
"To bring in another centre-back then you have James Perch, who is doing a fantastic job, (Mike) Williamson, who is doing a fantastic job. You can't have two purples per position because the club can't afford it. You have to be realistic."