well, you're basically summing Np(i)^2 / Gt at first i had trouble making sense of the formula, but i think it may work. see, if you've got three cases: position one: eight players, each with one game played position two: four players. two with three games played, two with one game played position three: four players. one with five games player, three with one game played. so position one gives us: (1*1/8) + (1*1/8) + (1*1/8) + (1*1/8) + (1*1/8) + (1*1/8) + (1*1/8) + (1*1/8) = 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 = 8/8 = 1 position two gives us: (3*3/8) + (3*3/8) + (1*1/8) + (1*1/8) = 9/8 + 9/8 + 1/8 + 1/8 = 20/8 = 2.25 position three gives us: (5*5/8) + (1*1/8) + (1*1/8) + (1*1/8) = 25/8 + 1/8 + 1/8 + 1/8 = 28/8 = 3.5 position three, despite having the same number of players as position two, was much more stable. the higher JB Factor means a more stable position. i think that while hte number may appear meaningless in that it is not a number less than one that you had expected, it is still meaningful in that it can quantify the difference between a few guys with moderate-length tenures signifying positional instability, and a position with a lot of short term fill-ins and some long term stanchions that would signify stability in a position. sure, there may be a better way of measuring it somewhere, but i think this works just fine. tho it'll be meaningless to compare outfield to infield, as outfielders tend to rotate around without necessarily indicating instability so much as flexibility. but we'll see. or we would see if i got around to playing with numbers... maybe if we summed the outfield...? just a hypothesis... OE: helps if i actually fully use jb's formula.... position one: N = 1 JBF = 1/8 = 0.125 position two: N = 2.25 JBF = 2.25/4 = 0.5625 position three: N = 3.5 JBF = 3.5/4 = 0.875 so with these numbers, it works, and returns a number less than one. i'll play with thtis more later, but i think its premature to simply toss it out. maybe...