Placed in a position where you are given full authority to turn around a company despite being initially assigned to handle only a certain department may seem like a promotion of sorts per se. While people would wait for appointment papers, compensation rewards and legal appointments to cover such, the personal drive to be able to achieve such blessings may prove to be more appealing.
For some parties, proving they deserve the trust and confidence instilled is something that rewards people in a psychological manner, something more meaningful compared to the usual package promotion setups. Taking control and handling the organization as your own is the best way to step up and move in the greener directions. However, the need to undertake multi-tasking as part of being able to attain these goals is a given already.
Check this out for Some Tips on Effective Multitasking.