I think you have to have both to win a national championship. You cannot win without great talent and you cannot win without great coaching. In most cases anyway.
There is alot of teams who recruit great every year and have average coaching and never approach the playoff. Also teams who have great coaching but for whatever reason they are not a great recruiter so never make it past 10 or 11 wins.
Alabama probably has more talent right now than any program in history. They lost the title game because even they can’t survive so much coaching turnover. As a staff, Clemson was simply better prepared and that mattered in the big plays.
One of the real problems I have with recruiting rankings, as they’re currently done, is they lack context. Some positions are way more important than others. QB is number 1, but after that defensive players are far more important than offensive players. Offenses can fit schemes to players, defenses always have to react in some sense. Numerous offenses, both run heavy and pass heavy, have been developed and very succesfully used to overcome talent deficiencies. No one has a scheme that replaces a defensive tackle if the opponent wants to run inside. Defensive football is so often about creating numerical advantages through talent.
As someone pointed out, those Nebraska teams could be mostly homegrown on offense, but those defenses were the product of scouring the country for talent.