 RALEIGH-DURHAM, N.C.--BUSINESS WIRE--Avaya NYSE: AVYA, a global leader in solutions to enhance and simplify communications and collaboration, today announced that CRN, a brand of The Channel Company, has named Dennis Kozak, Avaya Senior Vice President of Global Channel Sales to its 2021 list of Channel Chiefs. The annual list recognizes leading IT channel vendor executives who demonstrate outstanding leadership, influence, innovation, and growth. Dennis selection also highlights his commi 