Found this article to be an interesting read on implementing new technologies an services into the Sam's Club retail model. It tackles the question of how the new same-day grocery delivery system with Instacart and other new technologies impact the traditional sales and can those two go hand by hand in the future of the company. It’s worth checking out.
https://www.pymnts.com/news/retail/2018/sams-club-instacart-digital-expansion-grocery-delivery/