Boss Nuno Espirito Santo admits it is vital for Wolves to bring in new players.
They were held to a 1-1 draw by Newcastle on Saturday to extend their winless run to four games.
"It's obvious that we must bring players," he said, with Wolves seventh in the table. "It was not the best game, it was difficult, not many spaces, but the final delivery should be better.
"We are working and hopefully things work out and we can solve it. We need solutions, we need more than specific positions, players that can bring us different situations, that can help us in these kind of games.
"I'm not happy because we didn't perform like we all wish, like we expect and should do. I always want perfection and sometimes days like this happen."
Newcastle are now six points clear of the drop zone after ending a three-game winless run.
The trio are now likely to miss Tuesday's FA Cup third-round replay with Rochdale, with 12 players now on the treatment table.
"I would think it'll be a big impossibility they'll be ready. Is anyone back? We'll see what the under-18s have got," said boss Steve Bruce.
"The resilience of the squad has always been there. They are a determined lot and a good lot to work with.
"They roll their sleeves up and a have a go. Yes, we lack a bit of quality and pace and power in certain areas, but you can't fault the way they go about their work."