Good sales requires cultivating the right environment for good sales people. That means you need good pipeline. Sales people are blood-thirsty mercenaries who go wherever the most pipeline is so that they can maximize their personal income. They're short-term minded people who only care about results over the next quarter.

Ph.Ds are inherently delayed-gratification types of people. Salespeople are thrill-seekers (aka, always crash the sales department's parties if you want to have the best time).

Sounds expensive.