Japan's domestic season is drawing to a close and players in the top two divisions will soon be considering their options for next season.

Crook, who spent much of the current campaign as assistant coach at second tier side Avispa Fukuoka, believes Australia is becoming a more attractive proposition for players but not yet attractive enough.

While the likes of Joel Griffiths, Ufuk Talay, Mark Rudan, Eddy Bosnar and the recently retired Tony Popovic have all had spells in Japanese football, there has been a notable lack of talent coming in the other direction.

Queensland Roar's Hyuk-Su Seo and Newcastle's Jin Hyung Song offer a South Korean flavour to the A-League but there is no Japanese influence at this stage.

Crook is convinced that the Japanese second tier contains players who would perform well in the A-League but he cannot see many willing to take the leap.

He told au.fourfourtwo.com: "I think Adelaide United's run to the final of the Champions League was a great showcase for Australia. Players could see the standard that has been reached here.

"They've done us a big favour in that regard.

"I've no doubt there are players who could come over here (from the second division) and be successful. But it's a big change (on and off the pitch) and whether we'll see players coming here at this point, I'm not sure."

At the end of the day it's money that talks and Japanese football simply offers players better financial rewards.

Crook said: "Players in the second division are earning and can earn very good money so that makes it harder to persuade them away."