Multiple team sources told NFL Network's Charley Casserly that Johnny Manziel has brought a "first-in, last-out mentality" to Browns training camp despite his offseason partying. Casserly was also told by club sources Manziel is "doing fine" with the playbook after coach Mike Pettine described it as a pre-camp obstacle for the rookie. After attending Browns practice, Casserly came away believing Brian Hoyer offers "no outstanding physical traits." We still tentatively expect Hoyer to start Week 1, and Manziel to replace him by no later than Cleveland's Week 4 bye.