Amoo will now resume immediately and is expected to take charge of the club's league match against Unicem Rovers at the Onikan Stadium this Sunday.
The former 3SC coach, supersport.com learned, has been in the background working with Stores.
Amoo actually oversaw the grooming of more than 100 players in the past 45 days for the club.
Taiwo Eneagwa, who worked in the capacity of head coach previously, will now assistant Amoo alongside a former defender of the club, Collins Ebitimi also known as Barbed Wire.
"Stores has hired Fatai Amoo as head coach. Taiwo (Eneagwa) continues as his Assistant, as well as Collins Ebitimi also known as Barbed Wire.
"They just used the opportunity to formally make the technical changes. Fatai (Amoo) had been grooming over 100 players over the past 45 days," a club source disclosed on Friday.
The Lagos club also made massive changes to their playing personnel by recruiting 25 new players and retaining seven from the existing squad just before the transfer window of the country's second tier closed this week.