But despite being linked with over 40 players, the Hammers only brought in Joao Mario on a short-term loan from Inter Milan and little known striker Jordan Hugill from Championship side Preston North End.
It is a world away from the grand promises made by co-owners David Sullivan and David Gold in a bid to lure sceptical fans from their beloved Boleyn Ground home of 112 years for the former Olympic Stadium.
The owners pledged that the move would finally enable West Ham - the second best supported club in the Premier League with 52,000 season ticket holders - to compete with the elite in the transfer market.
Supporters are incandescent with the reality as they have watched the team regress to the point they could well be relegated come what May.
The latest transfer window failing and West Ham's glut of injuries to key players for a crucial run of games have left Moyes worryingly short.
But here are five out of contract players - three of them midfielders, the area Moyes was most keen to bolster - the East Londoners could look to bring in for free now the deadline has passed.
West Ham have been linked with a move for the former Sunderland defensive midfielder. When fit, the German would be a solid addition to most Premier League squads. But that is Kirchhoff's problem, he rarely is having not played a single minute of football since 2016 following a succession of career-threatening injuries. He is believed to be making a comeback now, though, and is looking to resurrect his career. A short-term pay as you play deal could suit all parties.
It wasn't that long ago Samir Nasri was winning the Premier League title with Manchester City. Indeed the former France international played in the Champions League with Sevilla only last season. The 30-year-old joined Antalyaspor in the summer but has had his contract terminated just six months into a two-year deal "by mutual consent" with suggestions the Turkish club is struggling financially. Nasri has played eight times this season scoring twice and would add undoubted quality and experience to West Ham's squad.
Could Alex Song sign for West Ham for a third time? The Hammers brought the former Arsenal man in on loan from Barcelona under Sam Allardyce and he enjoyed a superb start being named man of the match in each of his first eight games. His form and fitness dropped off a cliff after Christmas and he left the club at the beginning of the summer only to be brought back by Slaven Bilic. Injuries hampered his second season again with only 12 appearances before he joined Russian side Rubin Kazan on a free transfer. Song has played just 22 games in two years over in Russia and was released recently which led him back to Arsenal where he has been training to keep his fitness. Again a short-term deal for the 30-year-old could suit all parties.
Former France international Bacary Sagna continues the former Arsenal-Manchester City theme with the 34-year-old right back available having been released by the champions-elect last summer. West Ham rely heavily on Pablo Zabaleta who may be needed in a defensive midfield role given the Hammers' injury problems. So a short-term deal for Sagna could solve that problem for a few months and add much needed experience.