[DYNASTY] Is Jonathan Stewart a buy low? in The Shark Pool (NFL Talk) Posted April 18, 2013 It's just not really supported by the data, though.I think it would be if it were possible. The issue is that there's no way to compare a "fresh" 30 year old LaDainian Tomlinson with a "worn down" 30 year old LaDainian Tomlinson because there's only one LaDainian Tomlinson. We have no way of really knowing how long a guy like Tomlinson, Faulk, or Portis could've played if he hadn't been worked into the ground from the age of 20-27. Without the wear and tear, maybe they could've lasted longer.I think it makes sense to consider mileage as a negative, even if there's nothing concrete in the data to support it. On the flipside, the fact that a back is talented enough and durable enough to handle a high workload bodes well for his future. In general, the reason why players get those opportunities is because they can deliver.That's a reasonable hypothesis, but even by that hypothesis, there's no reason to expect Jackson/Gore to decline more than Sproles. Jackson/Gore get negative points for "wear related to workload" and positive points for "workload indicating general awesomeness", and the negative and positive points perfectly offset. So while I will gladly accept that, in theory, workload is a possible contributor to a player's decline... I just don't see how in practice considering workload will increase your accuracy in predicting declines.