When you decide to apply for a particular call or to address a potential donor with a proposal, the next stage is to develop and implement the offer. This is very time-consuming, and even the most solid proposals do not assure success. Depending on the donor requirements, it can sometimes be avoided as few would request for a short concept paper before choosing specific concepts for a complete proposal. Nevertheless, it can be beneficial to have a short concept paper on hand, as in some cases these concepts can be further developed and refined for another proposal application, especially if there are several donors necessary for the project. However, no matter the extension of the submitted proposal, once the funds are received, it needs to determine your think tank's operations in carrying out the work. Even though some funders provide more flexibility than others, it is essential to write a proposal, which to an extent can actually be completely carried out.