Robert K. O'Daniell
Angel investor Teresa Esser speaks during the first of the 'Startup Cafe' series lectures Tuesday at EnterpriseWorks on the University of Illinois campus in Champaign. Esser is the author 'The Venture Cafe.'
CHAMPAIGN – Angel investor Teresa Esser has a few rules about which companies she'll invest in.
One is, she won't invest in an entrepreneur who has a background in engineering but no experience in sales.
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