What you actually need is two people to do the sales job. One sales person who is a granted tech idiot and one person who is a technical expert in the field. The problem is that sales people are a unique breed and 99.9 percent of technical people CAN NOT DO THERE JOB. A tech person is dry, boring and unable to coverse with anyone but other geeks and answer the hard questions. While a sales person can stand up infront of everyone give a good presentation and make small talk. Very, very few people can do both jobs, believe me my company has tried to find them and they are just not available.
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