That's according to former Toffees defender Martin Keown.
Marco Silva spent £ 40 million to bring the Watford striker this summer after having worked with him during his brief stint in charge on Vicarage Road.
Despite the strong start of Richarlison in his career with the Hornets, the 21-year-old has not scored since last November and raised his eyebrows at the fee that cost him to take him to Goodison Park.
Everton have strengthened well this summer and have spent £ 83 million on six players hoping to bounce back from a disappointing campaign last year.
"He did not score enough goals last year."
Everton hero Martin Keown
They have added quality in key positions, especially at the center, and Keown believes they have restored the balance that was missing last year.
And although he expects Richarlison to prove himself a success, he admits that he worries about his lack of goals.
"Well, obviously his manager knows everything about him, Silva has brought him," Keown said exclusively to Starsport.
"I feel like he's a good player, but he was a little bit like a man last season.
"Things did not go well for him, but he showed really good signs and I'm not at all surprised that one of the big clubs came after him because he has great skill on that left side, good pace.
"If you look at Everton now with Theo Walcott in one wing and Richarlison in the other, now they seem to have that threat.
"They needed a rhythm, Everton did not reach the pace last year, they had a lot of passes but they did not have the kind of balance they see in some of the other teams that are in the Premier League.
"It's all about pace now if you look at Liverpool and Man City you have to have that pace in wide positions.
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"It makes a lot of sense to me, it's expensive, but the manager felt that he needed it and the club has responded to that.
"I see him as a good signing, but he needs to score more goals, he did not score enough goals last year."
Everton starts his Premier League campaign tonight when they visit the newly promoted Wolves.
Martin Keown was speaking at the FA Football and McDonald's AF Awards of 2018, celebrating grassroots heroes across England.
Know more: www.mcdonalds.co.uk/grassroots