The four College Football Playoff teams rank in the top five nationally in points per game and yards per game.

For defenses to determine who wins this championship, there might be a turnover here, a sack there and a couple of clutch red-zone stops.

Coaches who faced each team say there are several key matchups that could decide Saturday's semifinals:

No. 1 LSU (13-0) vs. No. 4 Oklahoma (12-1), Peach Bowl in Atlanta, 4 p.m.

Line: LSU by 13.5.

WHEN LSU HAS THE BALL: Coaches like to talk about being aggressive offensively. That's how Heisman Trophy winner Joe Burrow and the Tigers play.

"Whether...