I mention this as Lerner is definitely standing by his man despite a torrid start to Houllier's managerial reign amid unrest from fans.
And I think it is precisely because Houllier has such different methods to O'Neill that Villa have struggled to adapt to his regime.
Under O'Neill, rightly or wrongly, everything was geared towards the players performing on a match-day.
The squad were often given at least two days off a week and training was laid-back under John Robertson and Steve Walford, with five-a-side games taking up the majority of the time.
There was little analytical assessment of opponents, as O'Neill preferred to focus on his own side's strengths.
O'Neill did not talk to the players much at the training ground, he would save his wisdom for the dressing room, where he produced such inspirational rhetoric on a match-day that his players would be full of confidence.
So, regardless of whether his methods were more in keeping with Brian Clough's generation of players or not, they undoubtedly worked well despite O'Neill's tendency to rarely rotate his squad.
Yet since Houllier arrived in September, Villa's players are having to knuckle down under a completely different, disciplined approach.
And let's be quite clear, it has been a hell of a culture shock.
Already, Houllier has clashed with John Carew, Richard Dunne, Stephen Ireland and Beye, as reported in Mirrorsport.
The change of routine and methods has caused much grumbling at Villa's training ground as even the players' jacuzzi has been removed.
I was the first to report in October that Houllier had dramatically upped the number of days players were due in at the club .
And not only did he get French fitness coach Robert Duverne - who fell out with Patrice Evra at the World Cup - cracking the whip, but he also imposed a set of new rules that went down like a lead balloon.
Mobile phones were banned at the training ground, players were told to cut out non-football related chit-chat in training and those living miles away from the club, such as Stephen Warnock in Ormskirk in Lancashire, were asked to relocate .
Perhaps crucially, Houllier is completely different in the dressing room to his predecessor.
The 63-year-old is softly spoken these days and confirmed to the press last week that he has no plans to start throwing any tea cups.
Houllier believes his players should be motivated themselves, without him rallying them with any Churchillian speeches.