Brendan Rodgers has not yet figured out the best way to play the Brazilian.
The Liverpool legend, who spent seven seasons at the club as a player and also managed the club for three seasons, now works as a pundit for Sky Sports.
In his pre-game blog for the Merseyside derby this weekend he spoke of Roberto Firmino and Danny Ings – two players signed by Brendan Rodgers who Souness feels are being played in the wrong positions.
“Injuries are an obvious problem for him, but the other issue is the type of players he has bought - and that's something the manager has to take responsibility for.
“After the Manchester United game I said he seemed to be trying to put square pegs into round holes. I'm not quite sure what Roberto Firmino is yet. I think if you asked him he would only want to play in the No 10 position, but they've got Philippe Coutinho for that, and if you asked Danny Ings he would want to be a centre-forward, but he has played on the wing.”
He makes a valid point. Firmino is a central player by-trade. He worked from the left on occasion at Hoffenheim in the Bundesliga but his best position is the one currently occupied by his Brazilian compatriot. Considering he cost the club a fee reported to be in the region of £29 million by the BBC and that seems a misplaced spend.
They could have used that money to buy a top-class goalkeeper or centre-back but instead they wasted it on a Coutinho doppelganger.
As for Ings, Liverpool’s decision not to make moves for wide players has come back to bite them with the former Burnley man now playing out of his best position, through the middle.
The recruitment from Liverpool has certainly been interesting this season and it remains to be seen if Rodgers can fit all the pieces into a cohesive puzzle.