Twelve former LaSalle Bank directors have joined The Private Bank-Chicago, which is a division of PrivateBancorp. Robert Frentzel and Jeffrey Steele have been named as managing directors and executive vice presidents of commercial banking at The Private Bank. They were group senior vice presidents of commercial banking at LaSalle Bank. Brant Ahrens, most recently head of LaSalle Bank's Financial Institutions Group, was named managing director and group senior vice president and will head strategy and integration for The Private Bank-Chicago. In addition, the following LaSalle Bank executives have joined The PrivateBank-Chicago as managing directors and senior vice presidents in commercial banking: Bluma Broner; Peter Kane; Richard Kress; Michael Monticello; David Sauerman; and Steve Trepiccione. Former LaSalle banker Matthew Gibbons was named associate managing director and vice president and John O'Connell was named private banking officer. Joan Schellhorn, former senior vice president in LaSalle's human resources department has been named chief human resources officer of PrivateBancorp and a managing director and chief human resources officer of The Private Bank-Chicago.