A lack of discipline and a catalogue of errors were the reason Warrington slumped to a fifth straight Super League defeat, according to Wire head coach Tony Smith.
The Wolves were beaten by Leigh for the first time in 29 years, suffering a 22-8 defeat at the Leigh Sports Village on Thursday.
“Too many errors and too many penalties,” he said.
“Cheap penalties let them out – not building pressure, it’s just not good enough at the moment.
“We’ve got to take a long hard look at ourselves in there and discuss it a bit more.”
When asked whether he would shake up the team ahead of their next game away to St Helens, Smith admitted injuries won’t allow him to make a big overhaul.
“We haven’t got big changes to make,” he added. “We’ll probably have Stefan [Ratchford] back next week that may allow us to do one or two things.
“The King brothers will be the week after, Morgan Smith, [Ben] Currie’s still a bit off and Kevin Penny as well.
“We’ve got to knuckle down with the people that we’ve got, because they’re good enough to get the job done.”