For all the arguments stating that the level of competition has increased by so much, most people tend to forget the argument that these historic athletes would have access to newer methods of strength training, conditioning, and all these fancy new diets... not to mention that they'd have incentive to actually use them, considering the money being thrown around. At the same time the historical pitchers would not have been able to pitch every 2nd or 3rd day and be forced to pitch complete games and many of their stats would not be as inflated as they are.