SERENA Williams coach Patrick Mouratoglou believes the tennis star must come up with a different strategy to win more Grand Slams.
Mouratoglou says they cannot do the same thing over and over and expect a different result.
“We have to accept the fact that it is not working,” Mouratoglou told the BBC.
Serena, who has won 23 Grand Slams, missed four chances of adding to her tally since she came back after giving birth.
In the just-ended Australian open, she was knocked out in the third round.
“Maybe come back with a different angle, a different strategy and different goals so she can make it.
“She does feel positive; she feels negative too because it is a failure when she doesn’t win a Grand Slam.
“We have to face reality, but she is positive that she can make it otherwise she probably wouldn’t be on a tennis court anymore.
“She believes she can make it and I believe it too. She’s not that far, but we have to change a few things,” said Mouratoglou.