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• Case | HBS Case Collection | 2013

  Yammer (A)

  Mikolaj J. Piskorski, Kerry Herman and Aaron Smith

  In spring 2012, Yammer was on track to become a highly successful standalone company. Yammer was a leading Enterprise Social Network (ESN), providing companies a private social network in which employees could collaborate securely and efficiently. However, later that year, Microsoft executives unexpectedly reached out with an offer to acquire Yammer for $1.2 billion and integrate Yammer into the Microsoft Office division. An integration with Microsoft would have a profound effect on Yammer's scalability, software development, and organizational culture. David Sacks, CEO of Yammer, debated the challenges and opportunities related to competition, product, and culture as he thought about the offer on the table.

  Citation:

  Piskorski, Mikolaj J., Kerry Herman, and Aaron Smith. "Yammer (A)." Harvard Business School Case 713-407, May 2013.

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• Case | HBS Case Collection | 2013

  Ron Johnson: Retail at Target, Apple, and J.C. Penney

  Das Narayandas, Kerry Herman and Lisa Mazzanti

  In April 2013, Ron Johnson (HBS '84) stepped down after just 18 months as CEO of J.C. Penney. In his brief tenure, Johnson, an acclaimed retailer respected for his innovation and success in shaping the retail image at Target and Apple, introduced dramatic departures from J.C. Penney's traditional retail approach, and enacted changes quickly and simultaneously, with little market testing. Over Johnson's final 12 months as CEO, J.C. Penney shares dropped more than 50%. The case describes the environments at Target, Apple, and J.C. Penney during Johnson's tenure and how his experiences may have shaped the strategies that he implemented while CEO at J.C. Penney.

  Citation:

  Narayandas, Das, Kerry Herman, and Lisa Mazzanti. "Ron Johnson: Retail at Target, Apple, and J.C. Penney." Harvard Business School Case 513-103, May 2013.

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• Case | HBS Case Collection | 2013

  Eureka Forbes Ltd.: Managing the Selling Effort (A) (Photonovel Version)

  Das Narayandas, Kallol Das and Kerry Herman

  Citation:

  Narayandas, Das, Kallol Das, and Kerry Herman. "Eureka Forbes Ltd.: Managing the Selling Effort (A) (Photonovel Version)." Harvard Business School Case 513-015, May 2013.

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