A//www.institutional i nvestor.com/Article/2995275/John-Hull-of-Mellon-=oundation-Tops-Non-Profit-CIO-Rankings.html">John Hull of Mellon Founda=ion Tops Non-Profit CIO Rankings Charles Skorina had a =roblem. As an executive search consultant specializing in filling investm=nt officer holes at pension funds and end