Half the hard work has already been done.
The Spanish transfer window opened on Monday, and Barcelona could finally register Arda Turan and Aleix Vidal, summer signings they were prevented from using because of the FIFA sanction that had been hanging over the club like a storm cloud.
Arda took the No. 7 shirt, Vidal the 22, and the rest of these two players' lives starts from now.
There is still further work to be done in the winter window, but incorporating these two players is the first task.
They could make their debuts as soon as Wednesday night, when Barcelona host Espanyol at the Camp Nou in the Copa del Rey last 16.
It is unknown whether Luis Enrique will take the plunge and start both players against their local rivals, though given the draw they played out in La Liga on Saturday, it is expected the coach will put out a strong side.
Both of the new signings are versatile in their own ways.
Arda, brought in from Atletico Madrid for €34 million, can not only play in either of the wide-forward positions but can also feature in the two midfield roles, usually occupied by Andres Iniesta and Ivan Rakitic or Sergi Roberto.
He will give Barcelona's midfield oxygen and also provide a more rugged style of attacking than is currently offered.
The MSN don't like being rotated, so it will be rare to see Arda start in a forward slot, but it means Lucho can use him there if any of them are injured instead of the disappointing Munir El Haddadi and Sandro Ramirez.
Vidal, meanwhile, will offer relief to Dani Alves at right-back, as well as extra support in the wide attacking roles.
Alves started the season well, but his form has dipped recently, probably through tiredness, and he was very poor against Espanyol.
Vidal will both give the Brazilian some resting time and force him to keep his game at as high a level as possible for the rest of the season.
Beyond these two new signings, Barcelona have several tasks at hand. One is stopping Marc-Andre ter Stegen from leaving.
That would be a mistake. He could be a guaranteed starter between the sticks for the Blaugrana for years to come, even if Claudio Bravo is the better option in the short term.
Club statutes say Barca's net debt is not allowed to be more than 2.5 times higher than their net income (with further adjustments for interest, taxes, etc.), and it is close to that at the moment, so they essentially must sell to buy.
And Enrique would really like to make a signing. One man in particular: Celta Vigo forward Nolito, according to Sport's Ivan San Antonio.
Lucho coached Nolito with the Barcelona youth teams and then again at Celta, and he would like to be reunited with the skillful wide man, though his €18 million release fee clause is a prohibitive figure.
And signing him still wouldn't bypass the problem of not being able to drop, rest or even substitute any of the front three without them getting a bit upset.
One year ago on Jan. 4, Messi and Neymar were benched at Anoeta as Barcelona lost to Real Sociedad, sparking a week of crisis.
Since then, they have been virtually untouchable, with the coach reluctant to take them off for fear of repercussions.
When Neymar was substituted against Sevilla in October, he was visibly unhappy and it caused a stir in the Barcelona media and among the squad.
So perhaps signing Nolito would not remedy this, but if he is the man Luis Enrique wants, Barcelona should do the best they can to placate their treble-winning coach.