The former Derby County boss only took over at St James' Park in the summer, but finds himself under ever-increasing pressure just six games into the season following a disastrous start to his reign.
So far the Magpies have failed to win just one game under his guidance, against Northampton Town, sit joint-bottom of the Premier League table and crashed out of the Capital One Cup on Wednesday night to Championship side Sheffield Wednesday.
Ashley, though, will stick with his manager for now, as well as Charnley and Carr, with the Tyneside supremo keen to show that he will not be swayed by public pressure or media criticism, reports the Telegraph.
David Moyes availability may change Ashley plans
However, his plans may change dramatically if former Everton and Manchester United manager David Moyes becomes available.
The Scot is currently in charge of La Liga side Real Sociedad, but is struggling himself, with a recent win over Granada having eased mounting pressure on him and his side.
Ashley is reportedly an admirer of Moyes following his impressive stint at Everton, with the Telegraph claiming he even tried to appoint him as manager when he was in charge at Goodison Park.
Moyes could be interested in the job should things turn sour in Spain, although he would want the final say on transfers should he join, something McClaren does not currently have.
For now, though, both remain in their current posts and will be hoping to bring about a reversal in fortune for respective clubs after overseeing disappointing openings to the 2015/16 campaign.