[Morgan.]

If they're gonna go straight from auditions to the Six Chair Challenge then they have to be harsher in the auditions round and not let so many dud acts get through. For this you need a tougher panel, so take it back to three (Simon, Mel B and Cheryl ideally) and create the rule that an act needs all 3 yes' to progress to the next round. Then you'll get the best of the best acts to compete in 6 chairs. If they really wanted Simon could bring forward the Golden Buzzer of something similar, idk a Golden Ticket, that says if they believe an act has real potential but they only got two yes' then they automatically get to sing again at 6 chairs to prove they're better than their first audition.

Then just have the three categories as 'Boys and Girls', 'Overs' and 'Groups'. Obviously the rest works the same; six acts from each go the JH, four acts from each go to Live Shows (I'd even be tempted to say 5 from each to get up to 15 acts not 12) and then we have around 10 weeks of Live Shows with a Judges Vote (there'd be no need for deadlock with three pannellists).