like kinda not really? theres nothing you can do about internals but once you get to externals, you want everyone in your cohort to be within as tight a range as possible
think of it like a rubber band, if you have someone really bad bottoming and someone really good topping, that elastic is super stretched out and all of your [cohort] marks will be stretched out across the range. compare that to a tight high range where everyone is performing well and close together (e.g. all within 80s-90s) everyone's marks will be less affected...
@carrotsss seems to get this better than me, maybe he wants to explain?
also
@jimmysmith560 could you possibly explain this?