All the business has been done, and it is down to the assembled squads to prove their worth between now and the New Year.
And following West Ham’s indifferent start to the season, there certainly remains room for improvement.
Although the club has had one of its best windows in recent years, there are some gaps that should have been addressed.
Here are five players the club arguably should have tried harder to sign:
Options in the left-back position still seem thin on the ground, and fans will be hoping Aaron Creswell adjusts to the top flight quickly.
One player heavily linked was 22-year-old Kolodziejczak, who was rumoured to be in advanced talks with the club.
He has since moved to Sevilla on a four-year contract.
Arguably one of the most successful left-backs of the modern game, Cole was briefly linked with what was probably a speculative move at best.
After being released by Chelsea, the 33-year-old defender made no rush of choosing next team, leading to rumours West Ham may be interested in giving him Premier League lifeline.
There’s no doubt Cole would have been an assured and reliable option in defence, but wage demands may have rendered the move a no-go from the start.
He moved to Serie A side AS Roma.
Going into the final day of the transfer window, it was still widely publicised West Ham were short of a central defender.
At 32, the England international would have brought experience to the back line, and provided greater competition for places.
The club was said to be interested in bringing him in on a deal from Manchester City earlier in the year. He decided to see out the 2013/14 seasons with the eventual champions before moving to West Bromwich Albion in June.
Twice capped England winger Zaha has reportedly been on West Ham’s radar since failing to establish himself following his move to Manchester United.
A pacey attacking player, the 21-year-old would have provided greater competition on the wings.
The fact he has been allowed to go out on loan proves he was available to clubs, but his decision to re-join Crystal Palace may have been lead by his heart, rather than footballing reasons.
Already a proven goal scorer at the top level, Remy would have been an ideal foil to any of the ‘target man’ centre forwards already at the club.
The continued speculation he was unsettled at QPR, and after spending last season on loan at Newcastle United, it was felt he may be open to offers, with West Ham ready to give him first team football in London.
It is unlikely a firm bid was ever put in for the 27-year-old however, and he has opted to move to Chelsea in a£10.5m deal.