Last week's shock announcement that X5 Retail Group CEO Andrey Gusev resigned caused the Russian retailer's share price to tumble. X5 also booked a mixed set of second-quarter results that showed the retailer was only able to slow - but not reverse - declining like-for-like and customer traffic trends. Analysts in Moscow are split over its performance in the market and the outlook for the country's largest retailer, but there is agreement the departure of Gusev will come as a blow.