Cowboys edge Raiders keep NFC playoff hopes alive - NFL.com  Dallas News  Cowboys edge Raiders keep NFC playoff hopes alive NFL.com The Dallas Cowboys (8-6) kept their paper-thin playoff hopes alive on Sunday night riding a controversial MacGyverish first-down decision to a 20-17 victory over the Oakland Raiders (6-8) on Sunday Night Football in Week 15. Here&#x27;s what we learned: 1 ... Cowboys stay in playoff race with Ezekiel Elliott set to return Sunday Night wrap-up: Cowboys escape on…