2. Neville Gallimore
Much like Kelvin Joseph, Gallimore is another player that appeared to be in the Cowboys doghouse for a chunk of last season.
The issue with Gallimore was that at some point last season he seemed to be butting heads with the Cowboys coaching staff and that same staff is still in place down in big D. Add in that the Cowboys spent a first-round pick on Mazi Smith and you can envision a scenario in which the team moves on from Gallimore.
Though Smith isn't his biggest competition, Quinton Bohanna is. Bohanna is another example of a player who's enjoying a nice training camp. It looks like it may come down to who shows more on the field this preseason before the Cowboys make a decision.