Now don't take this the wrong way all you NATS ATCO PPrunes out there, but unless I am very much mistaken, at least 90% of our "not communicative" etc managers are ATCOs by training. Does that not say something about ATCOs ... or should I just drop my head below the parapet before someone blows it off !!!
In fact it seems that until fairly recently you had to have been an EGLL ATCO to get anywhere in NATS.
Just a thought ....
Humble non-ATCO !