Vita Vea, defensive tackle, Washington: He might not be around when the Cowboys pick at No. 19, but he could change the way the Cowboys think about a nose tackle. He is big (6-4, 344) and can clog the run lanes, but he is a terrific athlete as well with some pass-rush ability. The Cowboys have simply "gotten by" at nose tackle since Rod Marinelli has come on board, but Vea would be an upgrade on the interior.
Anthony Miller, wide receiver Memphis: After entering the program as a walk-on, he finished his career with 31 touchdowns in his final two seasons. He is a big-play threat, and the Cowboys' offense needs big-play threats even if Bryant remains. Miller had six games with more than 140 yards receiving. He can track the ball, has the ability to adjust and has good awareness. Perhaps he could be an option in the second round, but he could have the type of combine that boosts his stock.
Derwin James, safety, Florida State: The Cowboys are looking at moving Byron Jones back to cornerback in 2018, which opens up a spot at safety. James has the skills to be a starter from day one after leaving Florida State early. He missed most of 2016 with a knee injury, so there might be some medical concerns, but he has enough to warrant an early pick. He easily could go before the Cowboys select in the first round, but the Cowboys need to find out everything there is to know about James.
Plenty of positions Cowboys will focus on at combine - Dallas Cowboys Blog- ESPN