People forget that winning a National Championship is usually luck, mixed in with coaching ability. People forget that there are tons of mediocre to lousy coaches that have a title, mostly because of something happening for them. Ed Orgeron, Gene Chizik, Jimbo Fisher, Larry Coker, Les Miles, the list goes on of average(Fisher/Miles) to bad(Orgeron, Chizik and Coker)coaches that have won titles. Keep in mind, Larry Coker and Gene Chizik have more titles than Mark Richt, and just as many as Mack Brown.
If you can hit on a generational talent at QB(Chizik/Fisher) or be the beneficiary of a loaded roster that required minimal oversight(Coker/Orgeron), you can win one.