‘If cornerback doesn’t prove to be top-heavy in this draft, it certainly looks to be fairly deep. That could be good news for teams such as the Buffalo Bills, who might not necessarily target a cornerback as a premier pick but would like to do everything possible to enhance the wide-open competition for the No. 2 cornerback job opposite Tre’Davious White. For now, that battle features incumbents Levi Wallace and Taron Johnson, and free-agent signees Kevin Johnson and E.J. Gaines.’