Excellent article. This was something we learned at our last company, especially early on. Sales people that had previously excelled at large tech companies with a full suite of presentation, training, marketing, and support materials, with a mature and relatively stable product, did not do well in a fast moving environment that required more thought and digging into detail. In the end, our consulting organization (which was much more familiar with our product and customer requirements) ended up being our best pool of sales talent. I'd suggest considering technical consulting types who are working on actual implementations for sales roles.