Gian Piero Gasperini was denied any joy on his return to Inter Milan as Santiago Garcia's own goal gifted the Nerazzurri an undeserved victory.
Palermo's current coach was unceremoniously sacked as Inter boss having overseen just five games last season, but his revenge mission came undone when Rosanero full-back Garcia contrived to put through his own net in the 74th minute.
Inter appeared lost without suspended striker Antonio Cassano and influential midfielder Wesley Sneijder, currently a peripheral figure at the San Siro due to a contract dispute.
Whether unmerited or not, a first win in four outings boosts the Nerazzurri back into third place, while Palermo slip back into 17th and within two points of the relegation places.
Garcia had to look lively to cut out Philippe Coutinho's early drive but Palermo would have a relatively comfortable opening 45 minutes.
A soft and slow Inter midfield offered precious little creative spark and it was not until the 32nd minute that Esteb...