Learn about our team of experts below.


Douglas G. Zeif


“Doug” Zeif, is the principal of Next! Hospitality Advisors who, among other duties, oversees Food & Beverage operations globally for the Blackstone Group-owned hotel assets. For the past eight years, Doug had been Senior Vice President of Food and Beverage/Asset Management Services for a portfolio company subsidiary of the Blackstone Group, which Doug joined in late 2004 to help develop and operate the LXR Luxury Resorts & Hotels brand of hotels and resorts. During 2008 and 2009, Doug helped with the transformation and corporate relocation of Hilton Worldwide and set the stage for incomparable operating results.

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Dr. Charles Fenner


Dr. Fenner specializes in improving communications in organizations, developing ethical climates in organizations, and helping business leaders improve their skills through discovering themselves and their leadership styles. Dr. Charles Fenner, a 20 year Army veteran, served as an administrative officer in several US embassies supervising multi-national staffs and coordinating bi-lateral military activities. Dr. Fenner was responsible for the logistical, hospitality and event planning of senior US government visits to the nations in which Dr. Fenner worked.

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Darlene Marcello 


With over 20 years of operational and management experience, Darlene Marcello is a true Food and Beverage professional. Recently, as the VP of Food & Beverage and Procurement with HRI Lodging, she oversaw the operations of all F&B operations in over 30 hotels as well as procurement including 36 additional multi-family properties.  Darlene has proven experience turning once bankrupt F&B operations into profit centers.  Her brand development is savvy and eclectic creating new concepts such as Grayson Social and Killer Biscuits in Dallas, TX.  In San Francisco, she led Puccini & Pinetti transition and created Verge in Los Gatos.  Other top concepts: The Roost, Flannel, Market 104, Powdered Sugar and Batch Bar, a Top 10 Hotel Bar in New Orleans.

Darlene has also owned and operated a multi-unit restaurant group and was the VP of Operations with Semolina, Inc.  Darlene mastered managing daily operations in a large multi-state portfolio including managing P&L, contract negotiation, revenue forecasting, and creating SOP’s for all departments.

Darlene has her CSW certification and her CEC certification. She was a member of the Hilton Worldwide Food and Beverage Advisory board and is currently an active board member of the Hotel F&B Executive Advisory board and the New Orleans Healing Center board.


Mark Komine


Mark Komine is an accomplished business leader with a 30-year history of leading complex enterprise and operating teams for Fortune 300 companies, start-ups, and single business units including Hilton Worldwide, The Blackstone Group, Fidelity Strategic Investments, Starwood Hotels & Resorts, Fairmont Hotels & Resorts and Marriott Hotels & Resorts. As a head of sales, he has led as many as 2,300 employees. Since 1985, Mark has consistently delivered explosive growth by driving a distinct and innovative approach to leading sales transformation and peak-performing cultures by earning extraordinary customer and employee commitment. He tightly integrates strategic and tactical actions to outperform competitors in driving short-term target achievement, building sustainable premium growth, taking dominant market share, winning customer loyalty and increasing brand asset value.

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