Andy Murray says talking to the Lawn Tennis Association about the future of British tennis is a waste of his time.
The world number two inspired Great Britain to win the Davis Cup for the first time in 79 years with victory over Belgium in Ghent over the weekend.
Captain Leon Smith urged the LTA to use that triumph to inspire future players, but Murray, 28, said he "did not know where the next generation are".
"Nothing ever gets done and I don't like wasting my time," he said.
The Scot added he has not discussed the lack of young British players competing in Grand Slams with LTA chief executive Michael Downey.