The former Liverpool man swapped Anfield for the City Ground in the summer, signing for £17 million.
He’s played every game in the Premier League for Forest and is growing with each performance.
On Saturday, he started in an unfamiliar left-back role but did exceptionally well against Mo Salah and Trent Alexander-Arnold.
Williams has had some below-par performances but he’s not alone from a Forest perspective.
Cooper was adamant that he wanted the 21-year-old as his number-one priority at right-back during the summer.
Some injury issues have seen him revert to the opposition side but th ahead coach is excited by one aspect of Williams.
He told The Athletic: “We are really happy with Neco. The exciting thing about him is that he loves growth and learning.
“He’s a thinker. There are things that he’s always desperate to get better at.”
Williams made the tough decision to leave Anfield in the summer ending a long association with the club.
He made 33 appearances for the Reds and was way down the pecking order in Jurgen Klopp’s ranks.
Cooper hails aspect of Forest star Williams
The youngster is slowly but surely getting up to the demands of regular Premier League football.
He made 15 appearances for Fulham last season and clearly, those games in the Championship benefitted him.
Williams has had some underwhelming performances but as a younger player that is to be expected.
It’s great to see that Forest have signed a player who is willing to learn and ultimately wants to improve his game.
Cooper desperately wanted to sign Williams.
The challenge for him is to prove that Forest can get on with life after the brilliant Djed Spence starred in that position last season.
It’s fair to say that Williams isn’t quite there yet.
By the sounds of it, however, it seems the Wales international will leave no stone unturned in his quest to be worshipped by supporters.