When West Ham swooped to sign Downes for £12.5m from Swansea in the summer it was one of the more low key signings of an unprecedented £170m transfer window.
But it could yet prove to be one of the best pieces of business by West Ham for many years.
Downes has barely had a look in so far for West Ham in the Premier League.
Moyes revealed earlier this season that the midfielder had struggled to step up to the levels required in training after signing for the Hammers.
But Downes was man of the match in both his starts in Europe against Steaua Bucharest and in the first game against Anderlecht last week.
And the 23-year-old made it a hat-trick last night with yet another commanding display and win as the Belgian side came to east London.
Downes was phenomenal again for the Hammers, looking like a lovely blend between Mark Noble and Declan Rice.
Moyes admitted last week that his £12.5m signing is now giving him a major selection headache for the Premier League.
But he stuck with Tomas Soucek in midfield alongside Rice for the win over Fulham.
After his third man of the match display in as many starts, Downes was asked live on BT Sport whether he feels he should be getting more opportunities.
‘The decision is in his hands’ was the response from Downes when asked whether Moyes should start him for West Ham in the Premier League.
And he also commented on his hopes for more game time when speaking to talkSPORT reporter Ian Abrahams.
“I’m loving it, I think everyone knows it was a tough start (for me at West Ham),” Downes told talkSPORT’s Abrahams.
“Loving it now I’m playing a bit more and hope to play even more.
“But I’m just seeing how it goes, working hard every day and seeing what happens really.”
Moyes faces a big decision over whether to start Downes ahead of Soucek for the game at Southampton.
And it is made more difficult by the fact the Czech Republic midfielder has started to look more like his old self of late.