"erratic decision" is correct and usable in written English.
You can use it to describe a decision that is not consistent and has no clear pattern or logic. For example: "The stock market's erratic decision to plunge 500 points in one day surprised investors."
His conspicuous absences and erratic decision making during the Chechen crisis led to speculation about the degree to which Yeltsin was in control of the country.
José Mourinho was frustrated by a "ghost goal" and a fateful penalty shoot-out; Avram Grant by the most implausible of slips from John Terry at a sodden Luzhniki Stadium; and Guus Hiddink by the erratic decision making of [the referee] Tom Henning Ovrebo.
José Mourinho was frustrated by a "ghost goal" and a fateful penalty shoot-out; Avram Grant by the most implausible of slips from John Terry at a sodden Luzhniki Stadium; and Guus Hiddink by the erratic decision making of Tom Henning Ovrebo.
In middle ear pathologies, the inability to avail high-resolution structural and/or molecular imaging is particularly glaring, leading to a complicated and erratic decision analysis.
Brains seemed scrambled as erratic decision-making was not confined to the lamentable referee, Mike Jones.
Robot soldiers would not commit rape, burn down a village in anger or become erratic decision-makers amid the stress of combat.
But to Mr Sikorski and his colleagues, Georgia's leaders blew their credibility with erratic decision-making during the August 2008 war with Russia.
Michael Vick has been blowing by NFL defenders since long before Griffin arrived on the scene, but he remains an inaccurate passer and erratic decision-maker.
Her erratic decision-making meant she left Wasilla with a £22m deficit after her stint as mayor, then, as state governor, slapped an enormous tax on oil companies in Alaska.
The country's budget-deficit target of 2.5% of GDP this year would make it the EU's eighth-best performer, he said.Meanwhile Zsigmond Járai, a former president of the central bank who also served as finance minister under Mr Orbán, has added to the chorus of criticism of the government's erratic decision-making.
Gallingly for Everton fans, the team's attacking seems to have deteriorated or at least not improved, as Romelu Lukaku relies extensively on Yannick Bolasie or Idrissa Gueye for service, rather than the erratic decision-making of Kevin Mirallas, Ross Barkley and Gerard Deulofeu.
