 Philip Spann considers this unlikely, as for Sertorius to accept such a treasonable offer would be to destroy any hope of returning to Rome.More likely the offer grew out of an acceptance by the Lusitani that they would not be able to defeat Rome and that their best hope was to assist the establishment in Rome of a regime sympathetic to them.Spann suggests that a major reason for Sertorius' acceptance was that it was becoming clearer that there would be no amnesty for him and his followers nor reconciliation with the regime set up by Sulla.