OTTAWA—Frustrations with government efforts to manage the COVID-19 pandemic has led major businesses in this country to decide to take some matters into their own hands to avoid further lockdowns. The Canadian Chamber of Commerce is unveiling this morning an advisory group of 20 chief and senior executives to help businesses large and small manage their operations through restrictions and public health concerns. Among the group are the presidents of vaccine-makers Pfizer Canada and Providence Therapeutics, as well as executives from Shoppers Drug Mart, WestJet and BlackBerry. Chamber president Perrin Beatty says the businesses involved will look for ways to protect their employees and customers and help with vaccination efforts. Among the items on the group’s agenda will be coming up with ways to encourage employees to get vaccinated and protocols for using rapid tests that have languished in warehouses despite repeated requests from companies for their use. Beatty says …