Manziel lost the respect of many Cleveland veterans because he didn’t learn the plays. Allegedly he worked in the weight room but he didn’t focus on the tactical elements of the sport. This doesn’t fly in the NFL and they even responded better to undrafted rookie Connor Shaw. But his partying and celebrity lifestyle didn’t help matters.
One scout said: “The kid never put in the time he needed to – studying film, organizing workouts, 7-on-7 workouts – he didn’t do it. His thing would be he’s going to show up on Saturdays, ‘I’m a gamer.’ He’d show up for practices and games but that’s about it. Johnny thought he was an NFL superstar before he came into the league (via ESPN).”