Know-How Exchange : Strategy

I am newly appointed marketing and sales, M&S, manager in an international pharmaceutical company in headquarter, HQ. I am working in a new buisness division/program. My job is to define the optimal organisation structure for the new M&S division (HQ, local – down to the field force), to find synergies with the existing old buisiness on the local markets and also in the HQ. Could you suggest me some books, articles, dot.coms for reading? Real life cases are more than welcome.
Thank's in advance.
Alenka Rutar P.