Its like musical chairs, or lipstick on a pig, deck chairs on the titanic - pick your analogy.
Ask yourself why Brent would take the leader of the Americas VC team, who since their arrival has never delivered an annual plan - not once, for three years, and promote that person to "CMO" of vision care (and eliminated two people who actually knew what they were doing so he could do it), and bring in someone from outside the industry who knows nothing about the business and demote the poor guy to "focus" on the Americas...
Looks good from the outside - not so much under closer inspection...
If Sheila were smart she would be asking the same questions but thats not the game is it...