Super Bowl champion Eric Davis and Rahshaun Haylock preview the Niners Divisional Playoff matchup with Dallas. E.D. and Kyle Shanahan's common bond relating to the Cowboys. How are these teams different from last season's meeting? Comparing Shanahan's offense to "positionless" basketball --who guards who if you're the opposing defense? What should be expected from Dak Prescott and the Cowboys offense? E.D.'s keys! Plus more!