Sonny Ericsson is mobile telephone company and has been involved in mobile phones for years. The managing Director is considering new smart phones. You have been appointed Head of the Research and Development (R&D) department. One of the first things you realise as new Head of R&D department is that company has been using Zero Based Budget (ZBB). Write a report to your boss explaining the potential disadvantages of using ZBB to allocate funds to a R&D department