West Ham manager Sam Allardyce has praised the work David Moyes is doing at Manchester United and feels his efforts have been undervalued.
Moyes replaced Alex Ferguson at Old Trafford in the summer and the reigning English Premier League champions are currently eighth after losing their last two home league games.
West Ham, themselves struggling down in 17th place, visit Old Trafford today, with Allardyce acknowledging the size of the job Moyes has after replacing an icon such as Ferguson.
"For him, at the moment I don't think it's quite as bad as everyone makes out," the Hammers boss said.
"(United are in the) semi-finals of the League Cup, qualified (as) winners of their European group and unfortunately for him, (they are in) a league position that he wouldn't have wanted but obviously he'll face the task as he knew it was going to be a difficult takeover period from Sir Alex.
"Old Trafford particularly is where he wants it to be the fortress that Sir Alex always seemed to make it and on occasion that hasn't seemed to happen for him.
West Ham joined United in the final four of the League Cup after beating rivals Tottenham on Wednesday.
A two-legged semi-final against Manchester City awaits Allardyce's side in the new year but for now the 59-year-old is keen to kick-start the Hammers' stuttering league campaign.
He said: "When you win such a game as at your local rivals, who are such a big club these days, then it does lift everybody, but you must use and take that into the next game and make sure you deliver the same performance again.
"We've not won as many games as we should have done in the Premier League and that's left everybody a little down. Manchester United we all know, if they're on song, on top of their form on that particular day it could be very difficult for us.
"We have to go and deliver that type of performance and resilience again and be as clinical in front of goal as we were on Wednesday night."
Allardyce will be without skipper Kevin Nolan as he serves the final match of his three-game ban but former United youngster Ravel Morrison is in line for a recall to the starting line-up.