Or they simply need to admit they fucked up this season and then box on. To be honest, to go back to another style now might be just as bad and will look really stupid.
The question that Gareth should have really been asked in that radio interview is "In hindsight do you regret a) trying to implement a change in playing style mid-season and b) allowing it to be done in a way that appeared to seriously undermine your coach? (whether that was the intention or not).