The Sex Pistols were not happy with Sid becoming the bassist. They felt they were conned by McLaren in firing Matlock in order to get Sid. McLaren wasn’t interested in if the band had talent. It was more a fashion statement for him. Ironically John, Paul and Steve were in it to be a band. Rotten today says about his friend Sid that he was nothing more than an empty shirt on stage. So yeah, you may not have to be perfect but you can’t also be inept.