Former Wimbledon champion Pat Cash says fellow Australian Bernard Tomic must build a solid support team to help him become an elite player.

Tomic is currently being coached by his father John, though John Tomic has been banned from tournaments for assaulting his son's hitting partner. Tomic recently brought on Croatian Velimir Zovko as a co-coach.

"He's a bit of a giant killer and he's a threat to everybody," Cash told *The Courier Mail*. "He likes the Australian and Wimbledon, where he gets a little bit of extra pace off the grass. But consistency's never going to be his strong point unless he turns it around. What we do know is that players who produce consistency are very level headed and have a strong, stable team around them.

"It doesn't matter where you look: You take Federer...there were times when he didn't have a coach, but he certainly had a solid team around him. Nadal, Djokovic, too, Murray’s got it. I had my team. Pat Rafter had his team. Sometimes you make a change, but you've got a solid base of a team there with exceptional people. When he does get it, there might be a change coming."