The Hoops are currently in 19th place in the Premier League and five points from safety after failing to pick up a victory in their opening 10 games.
QPR manager Mark Hughes signed 11 new players during the summer transfer window to strengthen his squad, including big-name stars such as Júlio César, Esteban Granero and Park Ji-Sung.
And Bowen revealed there have been a series of tense discussions between staff and players about recent performances, and he hopes to see a reaction against Stoke City on Saturday.
“In the last two days we had meetings, sat down and let individuals know in no uncertain terms it’s unacceptable,” Bowen told QPR podcast Open All Rs.
“They held their hands up and took it on board and we will work at it to make sure we are better next time.
“We encouraged them to point a few fingers and put demands on them.
“I want them to be a bit more angry.”
With Hughes second-favourite behind Southampton’s Nigel Adkins to be the first manager to get the sack this season, former Tottenham boss Harry Redknapp has been linked with the Loftus Road outfit.
However, Hughes’ number two Bowen dismissed Redknapp’s reputation as a miracle worker for struggling clubs by pointing to his failure to guide the Saints to safety in 2005.
“People talk about Harry this and that,” added Bowen. “The fact is he took over at Southampton in 2005 as the big saviour and took them down.
“But when things go wrong, people say get Harry in.”
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