if a guy is consistently getting a big run per game you just can't take it away from him. seriously... if he has 37 yards on one run and the drive leads to a score... or 37 yards on 7 runs and it leads to a score, he's still responsible for getting the key yards that lead to a score, right?
look, i wasn't the biggest fan of HT because of his fumbling, but saying "take away his 37 yard run and his 58 yard run in the last two games and he's only got 23 carries for 75 yards just isn't acknolwedging the impact he's been making on the game.
You can't do it in each game, but isn't it fair to look at an entire season worth or production and say that if you take away 5 runs out of 150 (just over three percent of his total rushes) that maybe he's not getting the job done? If you have a back who will get you 5 yards per carry if you give him the ball 10 times, and a back who will give you 9 one-yard runs and a 41-yard run, which back would you rather have?
Arian Foster had 1616 yards on 327 carries and averaged 4.9 YPC. Take away his 5 biggest runs (74, 56, 37, 42, and 29 yards), and he 4.27 YPC. Still a solid average for an NFL running back, right?
Peyton Hillis had 1177 yards on 270 carries and averaged 4.4 YPC. Take away his five biggest runs (48, 35, 25, 24, and 18), and he goes down to 3.8 YPC. Just 0.6 YPC dropoff.
Timmy had 736 yards on 153 carries and averaged 4.8 YPC. Take away his five biggest runs (80, 41, 32, 24, and 20), and he's at 3.6 YPC. A full 1.2 YPC dropoff.
Take away just his two longest carries of the season, and he runs for 4.1 YPC--a full 0.7 YPC dropoff.
The issue isn't whether THT is an NFL-caliber running back. The issue is whether he's a starting-caliber NFL running back. Clearly, his production is not consistent enough to keep the team out of a ton of second-and-long passing situations which murdered our QBs last season.
Three more comparisons, just for fun:
Jamaal Charles: 1467/230/6.4 ----> 5.39 YPC.
Chris Johnson: 1364/316/4.3 ----> 3.6 YPC
Adrian Peterson: 1298/283/4.6 ----> 3.9 YPC
Timmy's a boom-or-bust runner, but his booms aren't as frequent as other starting-caliber NFL backs, and his busts are far more.