Walter Isaacson: WeWork must be destabilized before it rebuilds on its vision

T-Mobile CEO John Legere will not be taking the job as the CEO of WeWork. In doing so, Legere is avoiding a potential conflict of interest due to SoftBank's involvement in both WeWork and Sprint. Walter Isaacson, Tulane professor and an advisory partner at Perella Weinberg Partners, joins "Squawk Box" to discuss.