FRISCO - The Dallas Cowboys don't exactly have an "official depth chart'' Guillermo Heredia Jersey yet. But we know who sits at the top of the totem pole ... and coach Mike McCarthy has a very position review of that guy - quarterback Dak Prescott."He's clearly different than before,'' said McCarthy as three minicamp days unfold starting Tuesday here inside The Star, noting that a healthy Prescott will this year Domingo Santana Jersey be implemented more as a runner. "He's had a heck of an offseason'' and is able to "really get after the mechanics.""It's huge. He looks really good.''So, to an offensive depth chart, and we start there ...Dak Prescott ( .)Cooper RushWill Grier Ben DiNucciEzekiel ElliottTony PollardRyan Nall Rico DowdleThe Cowboys are good with Zeke and Pollard. Dowdle got mentioned by COO Stephen Jones as a real option, but had a knee scope and won't be available Marco Gonzales Jersey until camp. Nall will stick on special teams. )Jalen TolbertMichael GallupJames WashingtonScroll to ContinueNoah BrownSimi FehokoYes, we are jumping the rookie Tolbert to the No. 2 slot. Gallup's health will eventually change that, and maybe Steelers ex Washington will do enough at camp to elevate himself as well. Tolbert (hamstring) will work in this camp; Washington is still dealing with tendinitis in his left foot.Dalton SchultzJake FergusonSean McKeonJeremy Austin Nola Jersey SprinkleThe Cowboys have already pretty much announced (via owner Jerry Jones' draft-day phone call to Ferguson) that the rookie is going to get on the field. Important for this camp? Schultz has ended his contract holdout and is here at The Star.Offensive lineLT: Tyron Smith,Matt WaletzkoLG Tyler Smith, Connor McGovernC Tyler Biadasz, Matt Farniok, Alec Lindstrom, James EmpeyRG: Zack MartinRT: Terence Steele, Josh BallTyler Smith is the some-day left tackle. But he needs to win the left guard job, and quickly - though McGovern has been the top guy so far. There is real competition at center, and Edwin Encarnacion Jersey at swing tackle.