If you have a restricted project: our team here will be able to send out follow up invites to the experts whom you have invited to your project, if the expert lets us know they are unavailable, we will be able to suggest experts with similar backgrounds. If you have a private and public project: our team will be able to expand our search, reaching out to other experts who have a similar background and expertise to what is required for your project. Some tips on how to increase the chances of experts submitting a bid: you must have a clear and concise project description, a budget that is suitable for the scope of work presented and a starting point for the project (if you are looking for research & development of a product - do you have a starting list of ingredients? etc.)