[UPDATE, April 26, 2017: Rocketrip said Carlson Wagonlit Travel, Deem, Ovation Corporate Travel, Sabre and Travel Leaders Corporate joined Concur in its partnership program.] Rocketrip CEO Dan Ruch thinks too few travel managers are advocates for travelers. He said the profession has a policy compliance problem and lacks innovation. His new, big-name clients apparently agree with at least some of…