Cassano's issues in Real was ALL him, not due to bad performances, but for being an uncomprimising dumbass who was too busy munching on paellas and making cracks about Mr Hat then bothering to come to training, for months. In the rare occasions he actually played, he was rather good.
His unprofessional behaviour there though was absolutely shocking. He was "reborn" as an individual in Samp, not as a player, realised he cant keep pissing away his career.