OUR DESIGN + TECHNOLOGY TEAM

John Welker
Partner & Creative Director
John Welker is the founder and creative director of Digital Playbooks USA. Welker led the design of the Digital Playbook™ App for the iPad® and manages all accounts, assisting teams with the implementation of the Digital Playbook product suite.
Contrary to popular belief, Welker is not related to the star wide receiver from a certain New England professional football franchise.

Marcel Tricarico
Partner, App Development
Marcel Tricarico leads the Interactive Team in developing custom applications for current teams. Tricarico oversees the Digital Playbooks development team's ongoing updates and software upgrades.
Tricarico holds a degree in Computer Science and is fluent in four languages: English, Italian, German and Code.

Nicolas Zewe
Sales & Marketing, Europe
Nicolas Zewe leads the sales and marketing efforts for Digital Playbooks Europe, Ltd. in Germany and surrounding regions.
Unlike Welker, Zewe is related to a star athlete — former German football player, Gerd Zewe. Zewe was part of the Düsseldorf team that reached the German Cup final on three consecutive occasions. He also appeared in the 1978 World Cup.

Oliver Mach
Client Relations Manager
Oliver Mach manages team accounts and coordinates client relationships across several sports.
Prior to joining Digital Playbooks, Mach was TV co-host of a popular music network in Germany. Mach is also an avid collector of sports memorabilia and is a stat guru, known for memorizing obscure game scores and player stats from past decades.