Luis Suarez is better centrally—nobody can or should dispute that.
But he is also better as close to the goal as possible, and Liverpool cannot afford to play their brand of football with only two central midfielders behind a line of four attackers.
Suarez has the workrate, nobody doubts that, but he also has the tactical licence to roam and create havoc wherever he wants—great when Liverpool are in possession, but difficult to compensate for when the ball is lost.
Shifting him to a left-sided starting position, where he can drift infield at will or move beyond the centre-forward, is the ideal and natural progression unless Brendan Rodgers switches to a formation which sees two forwards playing, with Suarez in the deeper role.
It also necessitates the signing of a reliable and quality left-back.
On the opposite side, there is a great chance that there will be a new name in place, but they will likely share plenty of characteristics with current Red Stewart Downing.
To balance out the team tactically and positionally, Liverpool need someone on the right of attack who will maintain width at times and join up to attack through the middle at others.
It is a disciplined and less-creative role than those of Coutinho or Suarez, perhaps, but inherently necessary for Liverpool to find the balance between attack and defence, outlet and cover.
Don't bet against Downing's recent improvements being enough to convince Rodgers that he can hold the fort for a while longer while a younger, newer recruit is found at the right price and with the right quality, while other areas of the team are shored up.