You have two choices: add the talent to manage the PR and marketing activities to your team or outsource it. A good source of names if you wish to outsource it can be found here https://www.startups.co/articles/top-crowdfunding-experts-consultants
This is something I've encountered many times - a lot of companies don't understand the importance of getting news out quickly. It's very important to make sure you have the right contact for approval and if possible, let them know to expect your press release within whatever timeframe. From th...