Lawrence J. Olewinski was named senior vice president of sales for GreatBanc Trust Co., Oak Brook, Ill., and Pennant Management Inc., Milwaukee. It's a new position at the jointly owned firms, which will form a holding company by the end of the year. GreatBanc is a corporate trustee for ESOP plans, and Pennant is an institutional investment manager. Mr. Olewinski, who will be based in Oak Brook, previously was a salesman on the institutional investment management team of Fifth Third Bank, Rolling Meadows, Ill. He was replaced by Michael Holan, who came from SEI Investments, according to a Fifth Third Bank spokesman; no further information was available.