Tennessee Football’s chance to make the College Football Playoff is up to 80%, according to ESPN’s Playoff Predictor. Only two teams have better chances, with Texas at 93% and Alabama at 84%. The Vols (4-0), coming off the 25-15 win at Oklahoma Saturday night, is ranked No. 5 in ESPN’s Football Power Index and No. 6 in ESPN’s SP+ rating. ESPN’s SP+, according to ESPN’s Bill Connelly, is a “tempo- and opponent-adjusted measure of college football efficiency” and is “intended to be predictive and forward-facing.” The Football Power Index, similarly, is a measure of team strength, according to ES…