He has deep pockets, a high profile and far-reaching network in financial, nonprofit and public sectors. By fall, Chris Heinz plans to settle into a home in Shadyside. He and wife Sasha want their kids, ages 5 and 2, to grow up in Pittsburgh, not New York. At 42, the youngest of the three Heinz brothers — whose mother is billionaire ketchup heiress and philanthropist Teresa Heinz Kerry — will relocate closer to the Downtown headquarters of The Heinz Endowments, where he, his wife and mother are board members.