Mark Bosnich insists Manchester United manager Ole Gunnar Solskjaer must make moves in the January transfer window.
The former Red Devils goalkeeper says some of Solskjaer's current squad are “just not up to it".
"There are players all over that squad - there's no need to get into naming and shaming - who are just not up to it," he told Sky Sports News.
"If you have a look at the team the other night, it's a young side and he's obviously gone for a young side, looking towards the future.
"That's reliant on the patience of the supporters - they may or may not come good within two years.
"He's doing something very similar to what Sir Alex Ferguson did when he was there. He had that excellent bunch of young players that he brought through the youth system.
"But let's not forget that before that, Sir Alex Ferguson was given a lot of time before he won his first major trophy. I don't think people these days have that kind of patience.
"I think, especially after the result and performance the other night, he's got no other option but to go and strengthen that squad."