Your point was to make a backhanded slight to this team by comparing it to an Elite 8 team with tons of experience. How do you know this team is just as talented? Are you just talking about raw athleticism? Experience increases your talent level (strength, athleticism, IQ, shooting, defense), so I think the word you are looking for is potential.
No, the word is talent. None of the 2003 players played in the NBA. None of the current players will play in the NBA. There isn't one tangible metric you can point to that will prove the 2003 team was more talented than the current team.
In fact, Harmon is a top 50 recruit. Were there any higher rated players on the 2003 team? If not, I could argue this team is more talented than 2003.