The approach he's following to manage the project conflict is ineffective.
Useless is another word for ineffective. Additional synonyms include inadequate, powerless, futile and unproductive.
effective means-something positive can happen ineffective means-something negative can happen
Cause.
impotent, useless, ineffective
Feckless
an ineffective can was lurking around the park last Monday.
The idea that her ineffective parenting was partly to blame for her son's incarceration overwhelmed her with guilt.
We all knew that the assembly would be ineffective in preventing underage drinking.
Appeasement is an ineffective way to handle a screaming child.
Tom tried to fly by flapping his arms like a bird, but it was ineffective because humans can't really fly.
The Somme bombardment was brutal and costly but highly ineffective.
England and France made a coalition with Poland to stop the Nazis, but it proved ineffective.
Ineffective
Old MacDonald had many farm animals that made repetitious sounds. TV commercials become ineffective when they are too repetitious.
An example of an ineffective affirmation
It means it was "made" ineffective.
ineffective