Separate your Hunters and Farmers. As soon as you’ve climbed the Sales Learning Curve, begin ramping your sales force by hiring renewal-oriented account managers. Keep the hunters moving, and let farmers tend to the crops.
Constantly trade off cash vs. growth. If you must replenish supplies while still crossing the desert, optimize your growth rate (sales rep recruitment and marketing spending) so that you maximize your recurring revenue run rate when you need to fundraise next.
Be prepared to cross the desert. SaaS requires R&D and sales expense up front for a multi-year stream of revenue, so it demands enough investment capital to fund 4+ years of runway. Load up for the long trip and pace your consumption of calories!