Jurgen Klopp's decision to play a less experienced side was criticised by many, although a scattering of experienced heads gave them a much-needed balance.
After a similar line-up overcame Exeter City, albeit over two legs, in the previous round of the competition, the German was confident his youngsters could step it up a level to face the Premier League side. And they did.
Brad Smith had a decent game at left back, but it was the midfield partnership of Cameron Brannagan and Kevin Stewart that impressed, with sharp, quick-thinking. Brannagan's pace going forward threatened the Hammers defence and rightly earned him a standing ovation when he was substituted in the final few minutes of the game.
Joao Carlos Teixeira also had a good game, as he tries to resurrect his Liverpool career after three years of being forgotten and loaned out by former manager Brendan Rodgers. Thankfully, Klopp has seen the Portuguese midfielder's ability and he is now getting the chance to prove himself in a red shirt.
With Jurgen at the helm the future certainly is red at Anfield.