A McKinsey study on managing goodwill impairments recommends: "Executives should also record as much of the impairment or restructuring charges as possible in a single announcement. Delivering a lot of bad news all at once to investors tends to work better than spooning out smaller bits of bad news over and over again." Assume that Teladocs management received a recommendation from valuation consultants that goodwill impairment could be as low as $6 billion or as high as $10 billion. Explain (a) whether the advice from McKinseys study is reasonable and (b) why Teladoc might have chosen to impair goodwill closer to the lower end of the range rather than follow McKinseys advice to record as much of the impairment charge as possible