A competitive proposal, whether it is new or a resubmission, takes several months to pull together. In particular, proposals with external partners (universities, corporations, schools, etc.) require additional documentation and lead time. Keep the internal deadlines in mind when determining the timeline for finalizing your proposal documentation. All Principal Investigators (PI) planning to submit a proposal should complete a Notice of Intent to Submit a Proposal Form.
Proposals that are well-reviewed address general and specific expectations of the funding agency. Here are some resources to help you get started.