I don't buy this "Herschel did it in 3, Tebow did it in 4" reasoning that Georgia fans (and Walker nostalgics) use to discount the SEC career rushing TD record Tim Tebow is about to set.
Actually, I'd argue that Georgia fans don't want to go there. Here's why:
In those "only three" years, Herschel Walker had 994 rushing attempts: 274 as a freshman, 385 as a sophomore, 335 as a junior. His 49 TDs came at a rate of 1 TD per 20 carries.
In 3.5 seasons -- and let's end this "4" bunk, because Tebow has only played half a season this year and was a part-time player as a freshman, as you'll see -- Tim Tebow has had 596 rushing attempts: 89 as a freshman, 210 as a sophomore, 176 as a junior, 121 as a senior.
Tebow's 49 TDs came at a rate of one TD for every 12 rushing attempts.
Let's say that again: Herschel enjoyed 66 percent more carries than Tebow. Tebow could play SIX years in college and not get as many carries as Walker got in 3.
What's the point? That while Walker played "only" three years, he had many many many more chances to carry the ball -- to score a rushing TD -- than Tebow had.
And yet, here they are: They still have the same number of TDs, because Tebow scored TDs more efficiently when he did rush the ball.
So beyond the superficial error that Tim Tebow has played "four" years to Walker's "three" -- which discounts Tebow's part-time freshman year and half-played senior year, which probably amounts to LESS than Walker's 3 years -- it's really all about usage rate.
With 66 percent more carries than Tebow, it is Walker -- not Tebow -- that had the vastly expanded opportunities to score more TDs.
Tebow was simply more efficient at running the ball into the end zone, both from a relative sense (based on the use-rate above) and -- as soon as Saturday afternoon -- in an absolute sense, too.