You can use IDSA guidelines: http://cid.oxfordjournals.org/content/early/2011/01/04/cid.ciq146.full.pdf+html and Community-acquired necrotizing pneumonia caused by PVL secreting Staphylococcus aureus is highly lethal.
In the treatment of necrotizing pneumonia linezolid proved ev. clindamycin (inhibition of toxin proteosynthesis) . It is mainly a problem of early diagnosis.