I wasn't a huge fan of this guy based on his reputation of bad character, that stuff on hard knocks, and underachieving in 2009 when the cowboys intended a larger role for him on offense
but it seems, according to that video, this dude is really busting his *** off. He looks very determined to have the year of his career. That video is highly recommended for anyone who still has any qualms about him after he ballooned to 296 pounds (according to what the trainer said) because of the hamstring injury, weight lifting, and eating.
again.. highly recommend anyone watching that. its rather long, but its very informative and I enjoyed it. He worked a ton of catching drills too... definitely helps him in the receiving game to some extent