RENO, Nev., Nov. 25, 2013 /PRNewswire/ -- Miller Heiman, the leader in global sales performance, announced today new leadership for its Center of Excellence recognized as the authority in customer service, technical support and telesales training. Donna Walker will lead this solution portfolio – with Impact Learning Systems, a division of Miller Heiman, as its keystone. (Photo: http://photos.prnewswire.com/prnh/20131125/LA23916) (Logo: http://photos.prnewswire.com/prnh/20110310/LA62494LOGO) Walker will assume the sales leadership and operational responsibilities for guiding the development and delivery of customer service, telephone sales and field service training and consulting. Walker brings vast knowledge and expertise to this role with more than 20 years of business experience and a strong track record of performance. During her career, she has led projects with several organizations to develop and implement their strategy for building and running effective inside-sales organizations. "I'm honored to lead this incredible team," says Walker. "They have produced such great results over the years—I'm inspired and excited to begin a new journey with Impact." Click here to read about Impact Learning Systems' training model. "We are thrilled Donna is leading this business that represents a significant growth opportunity for the Miller Heiman organization," says Leigh Hooker, Chief Operations Officer of Miller Heiman, Inc. "Donna's extended experience in the industry makes her the ideal candidate for this role." About Impact Learning Systems Impact Learning Systems is the industry leader in skills-based customer service, telephone sales, and field-service training. Impact's programs teach essential communication skills while building team spirit and a positive work environment. Companies using Impact's programs report measurable increases in sales and customer satisfaction along with reduced time to resolution, call escalations, and operational costs. For more information, visit www.impactlearning.com. About Miller Heiman: The Sales Performance CompanyMiller Heiman is the proven leader in sales performance, bringing game-changing insight to sales leaders worldwide for more than 35 years. For more information, visit www.millerheiman.com.