Can he Beat Williams?
Can he last the distance?
Can he beat Williams on points?
Can he KO Williams?
The answer to the above questions is NO.
Williams I feel, will be too good of a boxer for Skelton to deal with. Skelton has a slight chance, but only if Williams under performs. I think Williams has his number.
On the other hand, Skelton may revert to his Marciano and Liston style, in which case Williams has no chance.