For a QB who started 16 games, 3000/20 are anemic numbers.
If you take into account that Romo didn't start till the 2006 season, the passing numbers are not even close. In just 10 games that year Romo threw for 2900 yards and 19 TDs, in just 10 games!
In other years Romo's numbers were closer to 4000 yards and 30 TDs a year. That's the numbers a good passing QB should be putting up in a passing league.
If Prescott is ever able to achieve this, Dallas will be perennial Super Bowl favorites and not just mere contenders.