E-Commerce Names Mazzarella CFO

Paul Mazzarella has been named chief financial officer of E-Commerce Exchange in Irvine. He was vice president and corporate controller of Platinum Software Corp., now Epicor Software Corp. Mazzarella also held senior management positions at Arthur Andersen LLP.

* David Guy is the new senior vice president of worldwide storage systems sales at CMD Technology Inc. in Irvine. Guy joined the company last year as vice president of business development. He has also worked at EMC, Storage Technology, Aspen Peripherals, Digital and Compaq, where he was vice president of the storage OEM business.

* Jill Wilson O’Connor has been made a principal at LSA Associates Inc. in Irvine. She manages projects requiring environmental impact analysis. O’Connor has been with LSA for 14 years.

* Jeffrey K. Protzman is the new general manager of the Doubletree Hotel Anaheim/Orange County. He was formerly general manager of the Doubletree Guest Suites Santa Monica. Jacqueline A. Villamil has been named director of sales and marketing. She succeeds Michael Krouse, who joined the Hilton Anaheim as assistant director of sales. Villamil was previously regional director of sales and marketing at the Hilton San Pedro.

* Cathy Barry has joined Gladstone International in Irvine as account coordinator. She previously served on the board of directors for the Division of Children and Youth Services in New Hampshire as a gubernatorial appointee.

* Donna Kunz has joined RiechesBaird Advertising in Irvine as a senior account executive. She was formerly an account supervisor at Kelston International and held traffic and account management positions at Morrison, Lee & Stevens Advertising and Shafer Advertising & Public Relations.

* Shari Joslin has joined Uniloc PC Preload Inc. in Huntington Beach as marketing account executive. She was formerly a loan officer with AKT Mortgage in Anaheim Hills.

* David Taaffe, Dick LaBrecque and Kathy Feeny have been appointed to the positions of senior vice president of sales and marketing for PacifiCare Health Systems Inc. in Santa Ana. Taaffe joined the company last year after 13 years with Prudential Insurance Co., where he was vice president and chief financial officer, vice president of marketing and operations and vice president of sales for Western operations. He is now senior vice president of national accounts sales. LaBrecque, who joined PacifiCare last year as vice president of national accounts sales for the Health Plans division, was named senior vice president of individual, small and mid-size account sales and marketing. Feeny was named senior vice president of sales and marketing for PacifiCare’s senior HMO, Secure Horizons. Before joining PacifiCare in 1993, she spent 18 years at Allergan Inc.