Lazio president Claudio Lotito says they'll be active in the summer market.
Lotito wants to build on this season's Coppa Italia triumph.
"Aside from names, we are trying to look for which elements are needed in the squad based on their characteristics.
"We must create a squad of 22 first choice players who are interchangeable. We focus on the collective, as in our project those who are on the bench are almost more important than the players on the pitch.
"They must push their teammates on and breathe down their necks to ensure everyone always gives 300 per cent. If they don't, then they'll get replaced."