It's not enough to write this one up, your presentation had better include multiple opportunities to reinforce your exit strategy or you aren't going to sell many subscriptions. Most deals today are looking to pay a yield of twice the average annual yield of the stock market in order to compete. If your deal can't pay that, it is either an unsupportable concept or you have not completed your financial and capitalization programming properly. Only you can really answer this question, but if strong management credentials are lacking, so will be funding. You can always hire managers, so don't get too worried about this.
Entrepreneurs make money, managers make paychecks.
You had better have a strategic marketing plan that provides positive proof that you have all the parts, including a marketing plan that will support your growth projections. If you don't know what a strategic marketing plan is about, you aren't quite ready yet. There is no substitute for a firm commitment for long term financing, but a LOI or Letter of Interest will go just fine. The more lenders willing to work with you, the better. You must address this element or your deal will die an ugly death.