Could Alabama or Florida State left out of College Football Playoff?

Adam Gold and Roddy Jones of ESPN/ACC Network wonder if Florida State football and/or Alabama football will be left out of the College Football Playoff even if they win their respective conference championship games. Florida State is currently No. 4 in the CFP rankings and faces No. 14 Louisville football in the ACC football Championship, while No. 8 Alabama Crimson Tide faces No. 1 Georgia Bulldogs in the SEC football Championship.