def _copy(subfieldids):
for i in range(0, len(subfieldids)):
org = coaches[subfieldids[i]]
if i+1 >= len(subfieldids):
j = 0
else:
j = i+1
dst = coaches[subfieldids[j]]
player = org.copy_rnd_player()
geneid = player.get_geneid()
if dst.has_player(geneid) == False:
player.reset()
dst.assign_player(player)
