EVGENIY Levchenko is concerned Adelaide United's game plan is too predictable.

The Ukrainian said Adelaide played too many long balls to striker Serginho van Dijk in the friendlies against Brisbane Roar away (3-0) and Melbourne Victory (1-1) at Hindmarsh last Friday.

"It's not that I'm not happy. I just want to be realistic and try to understand things here," Levchenko said. "I'm a perfectionist and I want us to get better.

"I want our team to have more opportunities to play soccer and not just kick the ball to Serg (van Dijk)."

While Adelaide was unbeaten in its three matches against Roar, Victory and Gold Coast United the side has been outplayed in two of the three.

The Red will playin the A-League season opener against Perth Glory at nib Stadium on October 9.

Boss Rini Coolen said Victory was "better". Critics in Toowoomba rated Roar highly as the champion tried to play football on the unsavoury deck rather than the route-one tactic successful for the Reds.

Levchenko said Victory was more organised than Adelaide and showed more maturity after Reds attacker Andy Slory scored the opener in front of a Harry Kewell-inspired 10,000 crowd.

"Sometimes it's good to play Serg'," he said. "But we've got to play much more of a possession game. I don't want us to be really predictable."

Levchenko said his game plan might be scrutinised if Adelaide was at the top end of the table despite playing long balls. "No-one will say anything if you win games playing that way," he said.