The phrase "a plausible case for" is correct and usable in written English.
It can be used when presenting a reasonable argument or justification for a particular point of view or action.
Example: "The researcher made a plausible case for the need to invest in renewable energy sources to combat climate change."
Alternatives: "a convincing argument for" or "a reasonable justification for".
There's a plausible case for preemption.
There is thus a plausible case for selecting a relatively liberal pope who understands the West.
The problem is, the pro-impeachment Republicans are right: There is a plausible case for taking that step.
Mr. Chailly and the Concertgebouw players made a plausible case for the Cooke version as a reasonable compromise on Sunday.
I don't know if Beethoven and a sympathetic newspaper reporter can redeem a messy American city, but this movie makes a plausible case for so fervent a dream.
Nowhere is there presented a plausible case for seeing life and literature as mirroring one another in so straight- forward a way.
On the intervention: I frankly haven't seen any plausible case for a military intervention.
"Isikoff makes a plausible case... for continuing to pursue a story that could possibly have brought down a president," Tom Goldstein wrote here in 1999.
Just as in 2013, there is a plausible case both for and against taking action against Assad.
Though its passage was hardly assured if Hillary Clinton had won the election — she, too, had come out against TPP amid an unexpectedly tough primary challenge from the more liberal Bernie Sanders Obamama had expected to arrive here for the Asia-Pacific Economic Cooperation summit with a plausible case to make for the U.S. agreeing to the deal.
Because of Obama's declaration that the "United States will not develop new nuclear warheads... or provide for new [nuclear] military capabilities" there is now a plausible case to be made for anti-missile defense.
