First, SEBU has resisted integration with the rest of vmware since the acquisition of VeloCloud. That's not working out well, as running your own services, customer success, and sales team may be good for innovation or independence, but bad for the ability to gain efficiencies (which is what BC is after). The political wrestling between SEBU and EUCBU over this trainwreck of "anywhere workspace" is exhibit A. Never has the company blown so much on marketing ($8M) and so little on actual product and engineering work (less than $1M) - and the result was more than predictable.
Anyways - if any BU is sold off (which means most likely becoming part of another PE-funded equity (look at the Citrix-Tibco deal as an example), it does not mean that this BU would run independently. No current GM is going to be a CEO. The pain will just be prolonged and continue elsewhere. A merger, cost cutting, everybody worrying about their jobs, attrition, etc.