Palermo director Giorgio Perinetti says they expect to name their new coach tomorrow.
Gian Piero Gasperini left on Sunday after terminating his contract by mutual consent.
"Between tonight and tomorrow we will have a meeting to decide on the new Coach," he told reporters.
"Sannino's return is possible, but there is nothing official yet.
"We are working on it, and by tomorrow you will have news of a new Coach."