[LJR]

in my experience, only the stamina at the position he's listed at goes up a letter grade if you devote enough points to endurance....in other words, if he's listed as a SP, then his SP Endurance will go up from and E to a D while his reliever endurance remains a C. If he's listed as a MR, then his reliever endurance will go up from a C to a B while his starting endurance remains an E. Just make sure to toggle the player to the SP or MR/CL according to where u want endurance to increase.

Eric Gagne has become quite the formidable SP now that I've been able to increase his SP endurance up to a D from an E....:-)