i think the problem is the opposite, in random battle teamwork is not rewarded
we need spotting reward for dd
cruisers shooting down airplanes in vicinity of bb or cv
cv killing bombers in vicinity of bb or cruiser ( even though that might be too late then so scratch that)
and so on , i like the idea of proximity buff; maybe a general crew or efficiency increase when in vicinity?
oh and btw , when u see people doing it wrong use a fantastic tactic :
press "enter"
communicate
u'll see it's great !