The Hammers travel to Arsenal tomorrow night, and a win would see them reach the last four of the competition for the first time since the 2013/14 season.
Given his side’s recent good run of form – including a 0-0 draw with the Gunners only last week – Moyes believes the semi-finals are well within the Hammers’ grasp.
“It would definitely boost the Club and everything we do, 100 per cent, if we were to go through,” he told whufc.com. “I’ve been fortunate enough to be at some big clubs and you need to win trophies.
“But at the same time, you can’t go about with a 24 or 25-man squad and not give everybody a game, otherwise you won’t have a 24 or 25-man squad, so you will see all the teams make changes, not because they are trying to weaken their team, but because they have to give other players the chance to show what they can do.”
The Scot however has admitted his side are struggling for numbers at the minute, and his priority must lie with keeping them fit for the Premier League.
“We don’t have enough players to make wholesale changes. I wish I could say I could because the Premier League is our priority. Do I want to get to a cup final and win a cup final? One hundred per cent, I really do, but not at the cost of us losing players.” he said.
“We’re really on the bare bones at the moment.”