Mental Models for your sales hiring
Tomasz Tunguz wrote this lucid post on using mental models for Sales hiring at Startups. The first is that of looking at the experience of the sales person through the lens of Market Leader or Market Challenger. Selling for a Market leader is considerably easier and allows sales people to leverage the brand. However selling for a startup is very different and involves educating the market and convincing the buyer to abandon the market leader in the process of buying the challenging solution,