Ronan O'Gara believes that England could be at 'tipping point' under head coach Eddie Jones.
The Irishman has formulated an opinion of Eddie Jones that is rife in the southern hemisphere that his teams, after brilliant starts, cannot maintain their level of performances.
''There's a theory down here about Eddie Jones, how he brings a massive bounce effect when he comes in as a head coach. 5am sessions, a great buzz, feel-good factor,'' O'Gara wrote in the Irish Examiner.
''But is it sustainable over a long period of time? And have we hit the tipping point already?
''Losing in Edinburgh to Scotland was a disappointment, and there was undoubtedly the honesty call in the meeting the following Monday.
''An opportunity to make a statement against France. That was the worrying bit: they were brutal in Paris last Saturday.''
So, is there resounding evidence to support these claims that Jones' team boom then bust in a fairly short period of time?
His first tenure in management wouldn't back this up. Having suffered a very poor start with the Brumbies, Jones then led them to a Super 12 final and the following year secured the title.
His success led to his position as Australia's coach, leading them to a successful Lions tour and Tri-Nations before a final of a home World Cup.
But then the Wallabies suffered a chronic loss of form, culminating in seven straight defeats and Jones losing his job.
A subsequent spell in charge of Queensland was a disaster from the outset, before suffering a familiar dip after a strong start as Saracens coach.
His reign in charge of Japan was and remained successful throughout, leading to him landing the England job.
So, while perhaps not being resounding, there is evidence to support O'Gara's claims that his teams suffer from burnout.
But it's perhaps too early to write off a team who have been missing their main-man in Billy Vunipola and had previously gone on such a fantastic run of results.
Another defeat against Ireland on Saturday, however, will just add more weight to O'Gara's theory.