i think there is a value in keeping the old and wise around, to prevent past mistakes, and funnel decisions into better decisions
but i also think there is value in refreshing a given group of people with new mind and views
certainly IBIS will need the people who have been around a long time, if even them were replaced then the community would make a mistake, suffer, learn from it, grow, eventually get new people, and the mistake and learning would be repeated and growth would stop on a long term scale, and they risk stagnation
for any base of people or users (not just a gaming clan) i think that periodically introducing new minds into higher positions allows a sort of alleyway of thought or creativity to be introduced into the minds or collective point of view of higher-ups that would be making decisions on the direction of the group as a whole
both the old and wise have value for they have learned what not to do, and can lead by example
but also do the new have value for they bring a new point of view or perspective that might not otherwise be considered, to the leaders of a group (in our case, IBIS)
just my two cents
A programming genius called HEAP
Had trouble in getting to sleep
So he made his lambs troup
through a huge FOR-NEXT loop
FOR 1 TO 10000: NEXT sheep.