I. A total of 9 rookie tailbacks took 50+ carries this season (Daniel Thomas, DeMarco Murray, Roy Helu, Mark Ingram, Kendall Hunter, Delone Carter, Stevan Ridley, Jacquizz Rodgers and Evan Royster, in order of most carries to least). The least of the group was Evan Royster who took 56 carries. The most carries taken by any rookie tailback not included in the group of 9 was Dion Lewis' 23 carries, so consider that before anyone accuses me of gerrymandering the group selection in order to make Daniel Thomas look worse. The break between Dion Lewis' 23 carries and Evan Royster's 56 carries seems a pretty natural one.
1. Of the group of 9, Daniel Thomas' per carry average at 3.5 yards per carry was the worst.
2. Daniel Thomas' 0 rushing touchdowns ties with Evan Royster, though it should be noted Thomas had the highest number of carries amongst all tailbacks included in the group of 9, whilst Royster had the fewest.
II. Let me go one step further, for you. I tallied the rushing totals of the teams that those 9 tailbacks played for and subtracted the rookie production so that we can compare how well those rookies did compared with the other backs on their own team.
1. Five of the tailbacks did better than the rest of their team (Evan Royster, DeMarco Murray, Stevan Ridley, Roy Helu and Kendall Hunter, in order), and four of them did worse.
2. The very worst was Mark Ingram whose 3.9 yards per carry on 122 carries does not stand up very well to the 5.35 yards per carry of the likes of Pierre Thomas (110 carries), Darren Sproles (87 carries) and Chris Ivory (79 carries).
3. The second-worst, and only other rookie tailback who rusher who had more than 1.0 yard discrepancy between his running and the running of the rest of his teammates, was Daniel Thomas.
4. Between the two, Mark Ingram did have 5 rushing touchdowns though, while Thomas had zero.
III. Let's look at it from a different angle, using Overall ratings from Pro Football Focus.
1. Amongst the 9 of those tailbacks, Pro Football Focus rated only two of them with negative Overall ratings.
2. The worst was Delone Carter a -4.9 but the second-worst was Daniel Thomas at -3.1.
3. The next worst was Stevan Ridley at a +1.4 rating.
IV. Ok, so you know the Overall ratings, which includes things like pass protection, penalties and pass catching, but what about the Run ratings?
1. Well, out of the 9 tailbacks only three received negative ratings.
2. They ranged from +9.7 (DeMarco Murray) to -7.7 (Daniel Thomas).
3. Only three received negative Run grades, and as alluded to, Daniel Thomas was by a WIDE margin the worst.
4. The next-worst was Delone Carter's -2.4 Run rating.
V. Not a fan of Pro Football Focus' subjective ratings system? That's fine. I can take them or leave them myself, to be honest with you. Let's go with some other raw, OBJECTIVE stats rather than subjective ratings.
1. Let's look at fumbles.
a. Delone Carter had the most fumbles of the group at 3, followed by Daniel Thomas at 2 fumbles.
b. No other back had more than 1 fumble, and two didn't have any.
2. Let's look at missed tackles created (which is to say, how many defenders made physical contact with the ball carrier but missed the tackle as the ball carrier got away clean).
a. The most of the group was by a margin DeMarco Murray at 21 missed tackles created.
b. The next best had 15 missed tackles (Kendall Hunter).
c. The worst was Evan Royster at 8 missed tackles, followed by Daniel Thomas, Mark Ingram and Stevan Ridley all tied at 11 missed tackles.
3. That seems a little unfair to Evan Royster though, as he only had 56 carries to make those 8 tacklers miss. So, you look at Runs-per-Miss. The higher the stat, the worse you are, etc.
a. By a good margin, Daniel Thomas came in highest at 15.0 carries per missed tackle.
b. Next came Roy Helu at 12.6 and Mark Ingram at 11.1.
c. Then you get a nice break until Delone Carter's 8.3 carries per missed tackle created.
4. What about the actual tally of yards after contact?
a. Evan Royster created the most yards after contact per carry, at a 3.4 average.
b. Daniel Thomas created the least yards after contact per carry, at a 1.9 average.
c. Amongst all tailbacks (rookie, non-rookie, etc) that took 25% of their teams offensive snaps, Thomas' 1.9 yard after contact average ranked #62 of 67.
Conclusion. Was the worst rookie? That's up to you to decide. But some folks might like to keep the above in mind before they start trying to make it look 'obvious' that Daniel Thomas was definitely not amongst the worst rookie tailbacks in the league last year, just because of his total rushing yards. He received the most carries of any rookie tailback in the league and amongst the ones given at least 50 carries, seemed the least-deserving of them. Does simply receiving a bunch of carries make him good? Not necessarily. It means the coaches counted on him, which is a good thing. But what he did with those carries is what should be used to determine whether he repaid that trust well or poorly. In this case, he repaid that trust poorly. That is not to say he will never get better. That isn't even to say he won't one day lead the NFL in rushing, even. This is purely about what he was in 2011, not what he will be in the future. I cannot predict the future with 100% accuracy nor can anyone else.