Nuno Espirito Santo says it's "obvious" that he needs to sign new players for Wolves this January after they made it four games without a win on Saturday.
Newcastle bagged a 1-1 draw at Molineux despite their crippling injury problems, and that result led Nuno to admit that Wolves are struggling.
Wolves have used just 19 players in the Premier League this season and they've looked tired at times over Christmas after a long and busy season already thanks to their Europa League involvement.
Having already allowed Patrick Cutrone to join Fiorentina, Jesus Vallejo will return to Real Madrid this month and Nuno knows numbers are getting thin.
It was their 37th game this season, 13 more than Newcastle. And although Steve Bruce says he is struggling with 24 squad players, Wolves have only 19 to call on. And they have played 13 more 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.
Leander levels it up | Wolves 1-1 Newcastle United | Highlights
"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."
Nuno insisted fatugue was not a factor in their draw with Newcastle, as they had several chances to win the game after Leander Dendoncker had cancelled out Migeul Amiron's opener.
Wolves are now in seventh place in the league table, remain in the Europa League and have an FA CUp replay against Manchester United this week to try and stay alive in that competition as well.