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Douglas Kolker, President Summit Selling Systems, Inc. and Sandler Training
Sandler Training is an international consulting organization with 224 training centers worldwide. Sandler utilizes distinctive, non-traditional sales and management methodologies, supported by continual reinforcement through ongoing training and individual coaching sessions.
Douglas Kolker founded a hugely successful, nationally recognized marketing service agency and ran it for 21 years. Despite the success, Kolker remained frustrated by the constant arm wrestling with prospective clients. As a solution, he
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