Comparing Davis' rookie year to Smith's 1st season is reasonable.
Emmitt – 937 yards rushing (3.9 YPC), 24 receptions-228 yards, 11 TDs
Domanick - 1031 yards rushing (4.3 YPC), 47 receptions-351 yards, 8 TDs
Hey, extrapolate at your own risk. But it doesn't hurt to dream, does it?