Andrew McDonald knows the problem, but doesn't have the answer.
Australia's cricket coach recognises the "creep" of global Twenty20 leagues impacting on Test cricket.
Australia thumped the West Indies in the first Test in Adelaide with the tourists weakened by the non-selection of a senior core including ex-captain Jason Holder.
Holder and others opted to play in T20 leagues rather than tour Australia.
"The creep is happening, there's a lot of (T20) leagues around the world," McDonald said.
"We like to think our Test players are interested in playing Test cricket because they like playing for their country.
"And I think that's first and foremost: if you like playing for your country, then you are going to put your hand up to play.
"And we've got some white-ball players that are in that boat where they've got some choices to make but at the moment they're choosing to play for Australia.
"For us, it's as simple as keeping our environment one that people want to be a part of.
"And if you can do that I think you maintain the core of your players - potentially if it's not a great environment the experience is not great playing for your country, then you may choose alternative options.
"But the scheduling is going to be tougher and tougher going forward.
"So there needs to be some thought given to it, how it's all balanced and how it all works together.
"I know the problem but I don't know the answer."
Australia will this week name David Warner in the squad for a three-match T20 series against the West Indies, which follows three 50-over fixtures.
Warner has retired from 50-over cricket and will miss the preceding three ODIs against the West Indies while playing in the International League T20 in the United Arab Emirates.
Australia's frontline fast bowlers Pat Cummins, Mitchell Starc and Josh Hazlewood have all been rested from the ODI series and could also miss the T20 fixtures.
