Digital Business

Professor Brian Armstrong
Chair and Director, BCX Chair in Digital Business

Brian is one of the foremost ICT industry leaders in South Africa, with over 30 years of top level management experience in Telecommunications, IT, technology R&D and systems engineering, both in South Africa and abroad. He is widely regarded as a thought leader in digitalisation, convergence and business strategy.

In July 2017 Brian joined the Wits Business School in the role of Professor in the Chair of Digital Business. His focus here is on building a comprehensive knowledge base on the diverse dimensions of Digital Business, and developing more scientifically rigorous models for and an academically sound underpinning of core concepts in digitalisation.

Previously was a key part of the leadership team which has been credited with turning Telkom around, in the capacity of Group Chief Operating Officer and Group Chief Commercial Officer. In his time with Telkom he also revived the ailing Telkom Business unit, and conceived and led the acquisition of BCX and its integration into the group. He was also responsible for the group’s Retail unit, as well as leading group strategy and transformation activities.

Before joining Telkom in 2010 Brian was BT’s Vice President for Middle East and Africa with overall responsibility to oversee and grow BT’s activities across the region. Before that his work experience includes South Africa’s CSIR, ultimately as the Director of the Division for Information and Communications Technology; and South African listed ICT services group AST (now Gijima), as Managing Director of AST Networks.

Brian completed his BSc (Eng) and MSc (Eng) at the University of the Witwatersrand in 1982 and 1984 respectively, and obtained his PhD from University College London in 1992.

His professional interests include business leadership, digitalisation, strategic change leadership and management, corporate entrepreneurship, organisational design, multinational and multicultural business optimisation, and venture creation.

Contact details:
+27 (11) 717 3951

Professor Greg Lee: Associate Professor

Greg is Associate Professor of Digital Business at Wits Business School, where he focuses on digital business with a particular focus on the effect of the fourth industrial revolution on workplaces and workplace analytics. He is the author of many books, including internationally-published books on analytics and human capital management. He has published in journals such as the Human Resource Management Journal, International Journal of Human Resource Management, European Journal of Operational Research, Scientometrics, the International Journal of Manpower, and many others. He consults to organisations and is a regular public speaker in leading industry conferences.


  • Lee, G.J. (2019). Designing Organizations for People-Led Sustainable Competitiveness. Silk Route Press.
  • Lee, G.J. & Davison, A,H. (2018). Designing payroll levies for firm training. International Journal of Manpower, 39(6): 766-781.
  • Lee, G.J. (2018). Talent measurement: A holistic model and routes forward. South African Journal of Human Resource Management, 16: 1-11.
  • Lee, G.J. & Barnes, T. (2016). Factors driving online apparel shopping in South Africa, Retail & Marketing Review, 62(2): 362-379.
  • Lee, G.J. & Rees, G. (2016). Give and take between households and the state: Development and application of a benefaction-contribution ratio, Review of Income and Wealth, 62(2): 362-379.
  • Lee, G.J. (2016). Transcending paradox in the realm of executive pay. In Goldman, G. (Eds.) Critical Management Studies in the South African Context, Aosis Publishing.
  • Lee, G.J. (2015). Training match and mismatch as a driver of key employee behaviors, Human Resource Management Journal, 25(4): 478-495.
  • Lee, G.J. (2015). Business Statistics Made Easy in SAS®. Carey, NC: SAS Press. URL:

Contact details
+27 (11) 717 3626

Leona Craffert is a psychologist, specialising in organisational development, leadership and change management with extensive experience in senior leadership roles in various industries. For most of her career she has been active as researcher, practitioner and coach in the people-technology-business interface.

She joined Wits Business School in 2020 as Adjunct Professor in the Digital Business stream. In this role her focus is on contributing towards the body of knowledge and practice related to people and institutional capability development, change and innovation for competitiveness and inclusion in the digital economy.

She fulfils a leadership and advisory role in a national initiative aimed at innovative, cross-sector digital skills development focusing on niche skills as well as the digital inclusion of under-resourced youth, and township entrepreneurs. She is in particular active in the area of exploring and implementing partnership models between business, government, academia and society for sustainable digital inclusion and change.

She is the lead author of the publication on large South African businesses’ response to the digital economy; lead and participant in the current and future scenario of the digital skills shared agenda of the Western Cape Provincial Government and participated in international research programmes on digital skills and transformation, digital inclusion and social innovation. In her earlier career she facilitated multiple Organisation Development and large-scale ICT systems implementations, nationally and internationally. 

Prior to joining WBS, Leona fulfilled the role as Director of the CoLab for eInclusion and Social Innovation at the University of the Western Cape until May 2020;  Group Manager: Organisational Development (AST and then GijimaAst) until 2012 and prior to that 11 years as senior research specialist at the Human Sciences Research Council.

Leona completed her BA (Maths & Psychology) and HED at University of Pretoria,  a BA Hon (Psychology) and MA (Psychology) at UNISA and a PhD (Psychology) at the University of Pretoria.