Not convinced he'll come. His business background has made him a fairly wealthy man, but this is based in London, as is his family. How will he cope; live in an hotel and commute back and forward to London? Not ideal.
Our most recent successful manager, David Moyes, lives locally and while with us travelled great distances to take in matches, something that GW might find unattractive.
Having said all this if appointed lets give him a chance. No one else is likely to make a better fist of it.