We're dealing with what... 4 games on 1 weekend, 2 on another, 1 on the next? Really wouldn't interfere with the bowls IMO, you can play them side-by-side.
This next part is me talking about what should happen rather than what would happen, but if you're going to have a playoff, don't use the bowls. Tradition, tie-ins, etc., blah blah blah, the bowls are part of this retarded archaic system, let's play the playoff games at the home stadiums of the higher seeded teams, as they do in every other football playoff.