The Hammers, struggling with injuries in attack, secured the loan signing of Evan Ferguson from Brighton until the end of the season.
With Michail Antonio, Niclas Füllkrug, and Jarrod Bowen all sidelined for extended periods, Ferguson's arrival provides much-needed depth up front.
In addition to reinforcing their attack, West Ham recalled James Ward-Prowse from his loan spell at Nottingham Forest.
The midfielder's return adds creativity in midfield, an area where Potter was keen to strengthen.
Jarrod Bowen, who had been out with injury, made his return against Chelsea and marked the occasion with a goal that briefly gave West Ham the lead.
Despite the eventual defeat, Potter remains optimistic about his squad's prospects, particularly with new reinforcements now in place.
"I'm happy," Potter said. "The players that we've got out at the moment are significant for us. When we get them back - which we will, hopefully, soon - that makes a difference to us.
"To get the two characters that we did, Evan and James, I think they will help the team improve training every day."
Howard Webb has defended the controversial decision to disallow West Ham a late equaliser against Arsenal, insisting VAR made the correct call after identifying a foul on goalkeeper David Raya during a stoppage-time corner at the London Stadium.
A late VAR intervention dominated discussion after Nuno Espirito Santo criticised the decision to disallow what would have been a dramatic equaliser in West Ham's 1-0 defeat to Arsenal.
Mikel Arteta praised the officials for making a "big call" after VAR ruled out Callum Wilson's late equaliser to secure Arsenal a dramatic 1-0 victory over West Ham United on Sunday.
Arsenal kept their Premier League title charge on course with a 1-0 victory over West Ham on Sunday, although the result was overshadowed by controversy after West Ham had a late equaliser ruled out.
