You are a strategic consultant tasked with developing an Organization Development $($OD$)$ Model for the retail industry to address the challenges posed by rapidly changing consumer behaviours. Your goal is to ensure retail companies can adapt and thrive in the digital age.

Task:

Develop a comprehensive OD Model tailored to the retail industry that incorporates elements such as change management strategies, employee upskilling programmes, and a customer$-$centric culture. Critically discuss how this model can help retailers navigate the evolving landscape and remain competitive in the industry. $(25$ marks$)$