How did Ray Rice and LeSean McCoy look in their rookie seasons?
You're comparing Sankey's talent and ability to Rice & McCoy?Wow.
Actually. I think he's comparing their rookie production, not their talent.
Then why throw their names out there unless one is expecting a similar increase to being a stud RB in the very near future?
Because they, like Sankey, were rookie RBs who didn't start right away, gain 1000 yards as a rookie, etc?
And with Rice and McCoy, they both showed signs that they could be exceptional RBs in their first year even though they weren't productive.
Rice had 140 touches his rookie year, ran for a 4.2 YPC, had 727 YFS and didn't score a TD.
McCoy had 195 touches his rookie year, ran for a 4.1 YPC, had 945 YFS and scored 4 TDs.
Sankey is on pace for 145 touches, has a 4.2 YPC, is on pace for 667 YFS and is on pace for 3 TDs. This is assuming that Sankey doesn't start to get more touches. While McCoy's usage was pretty steady his rookie year, 64% of Rice's touches came in the 2nd half of his rookie season. If you are arguing that Rice/McCoy showed signs of being exceptional RBs in their first year, you kind of have to apply the same argument to Sankey, as their production is pretty similar to his.
McCoy was also sitting behind Westbrook his rookie year, and Rice was behind McGahee as well as McClain who ran well for short stretches.
Westbrook was 30 years old in McCoy's rookie year, and was coming off a season where he had the worst YPC of his career. He was on the downside of his career, and would never again break 500 YFS in a season. McGahee was only 27 in Rice's rookie year, but he was hurt and ineffective that year. He only started 8 games, and had a YPC under 4. Save for one last decent season in Denver, he would never again be a great RB (although he would be a GL vulture for 1 more season in Baltimore). As you mentioned, rather than go to the rookie Rice, the Ravens chose to let a FB carry the load over Rice.
Sankey hasn't been able to overtake Greene, whom I am assuming most will agree doesn't quite have the talent and ability of a Westbrook or McGahee, even though
he is a dependable and solid RB.
Actually, when you ignore the names, and look at the production. Greene in 2014 compared to Westbrook in 2009 or McGahee in 2008 is pretty comparable. None of them are/did show much as a RB, but they kept the rookie RBs from getting a lot of work because NFL coaches tend to favor veterans over rookies (especially when it comes to protecting the QB). He just got a chance to be the bell cow yesterday in a very advantageous matchup and still didn't show anything close to special. He has shown us he can bust off a few good plays when the team is in a passing situation, but other than that he has been what the scouting reports and game film said he was - which isn't a bell cow RB, much less a stud.
Rice had 2 games as a rookie with over 15 carries. One he gained 64 yards, the other he gained 154. McCoy had 3 games with over 15 carries as a rookie. He gained 76, 84, & 99 yards in those 3 games. Of those 5 games where Rice/McCoy "got a chance to be the bell cow," only 1 came in the first half of the season, and it was Rice's 64 yard game.
It's too early to tell what Sankey will become, but you are looking BACK at Rice and McCoy, and you are letting what they did after their rookie year cloud your memory of how they performed as a rookie, because Sankey's rookie campaign thus far is pretty comparable to Rice and McCoy's.