re: If Ohio State was eligible for postseason does Bama dynasty happen?

It's hard to know in a what-if scenario like this. Personally, I don't think they would've been in the national championship even at 13-0. OSU's schedule is probably even weaker than Notre Dame's and they had close games against mediocre teams like Indiana, Purdue, and Cal. Other than Nebraska they got played close by almost every decent Big 10 team. And beating Nebraska a second time would hardly get them any extra credit since they scored 63 points on them earlier in the season.