There are two positions in the NFL where there are hardly or none non-black starters : RB/CB.. Unfortunately, the latter is probably none, as I dont hear of any non-black corners in the league. But as for RB, there aren't any starters that I know of at all..
In the upcoming draft, there are only two non-black players that stand out to me that could become a starter in the NFL as a runningback..Ty Varga and Zach Zenner. I don't know too much about Varga, but as said am a huge fan of Zenner. Both runningbacks, and can be a good player if given the OPPORTUNITY. as for cornerback, maybe another time...