More from these Authors

• Working Paper | HBS Working Paper Series | 2013

  Hidden Structure: Using Network Methods to Map System Architecture

  Carliss Y. Baldwin, Alan MacCormack and John Rusnak

  In this paper, we describe an operational methodology for characterising the architecture of technical systems and demonstrate its application to a large sample of software releases. Our methodology is based upon network graphs, and allows us to identify define three fundamental architectural patterns, which we call core-periphery, multi-core, and hierarchical. We apply our methodology to a sample of 1,286 software releases from 17 applications, and find that 70 – 80% of these systems possess a "core-periphery" architecture under our classification scheme. This type of architecture is characterized by having a single dominant cyclic group (the Core) that is large relative to other cyclic groups and above a threshold with respect to system size. We find that the size of the Core varies widely, even for systems that perform the same function. These differences appear to be associated with different models of development—open, distributed organizations tend to develop systems with smaller Cores, while closed collocated organizations tend to develop systems with larger Cores. Our findings represent a first step in establishing some "stylized facts" about the fine-grained structure of large, real-world technical systems.

  Citation:

  Baldwin, Carliss Y., Alan MacCormack, and John Rusnak. "Hidden Structure: Using Network Methods to Map System Architecture." Harvard Business School Working Paper, No. 13–093, May 2013.

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• Supplement | HBS Case Collection | 2013

  The Congressional Oversight Panel's Valuation of the TARP Warrants (A) (CW)

  Carliss Y. Baldwin

  Citation:

  Baldwin, Carliss Y. "The Congressional Oversight Panel's Valuation of the TARP Warrants (A) (CW)." Harvard Business School Spreadsheet Supplement 213-704, April 2013.

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• Case | HBS Case Collection | 2013

  Coach Hurley at St. Anthony High School

  Scott A. Snook and Bradley Lawrence

  Coach Bob Hurley of St. Anthony High School is one of the winningest coaches in the history of high school basketball. At age 65, he has won more than 1,000 games and 25 New Jersey State Championships. His players come from the toughest streets in the country and yet all but 3 have gone on to college. As head coach, he earns less than $10,000 a year; his circa 1917 school building doesn't even have a gym. And yet, for almost 40 years he has turned down all offers to leave a small, aging, Catholic school in Jersey City, NJ. This is a biographical case about a tough-love leader who epitomizes what it means to be authentic. It was written for a course on authentic leadership development to highlight the origins and potential of deep self-knowledge and passion. Class discussion focuses on the tensions between extrinsic and intrinsic motivations and the role that this plays in our lives.

  Keywords: leadership; leadership development; Authentic Leadership Development; Authenticity; Sports; coaching; Leadership; Leadership Style; Leadership Development; Groups and Teams; Sports Industry; Education Industry; New Jersey;

  Citation:

  Snook, Scott A., and Bradley Lawrence. "Coach Hurley at St. Anthony High School." Harvard Business School Case 413-091, March 2013.

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