Holden knows a thing or two about revamping a reality show. The 2011 series of BGT nosedived and the show looked dead in the water. Alarm bells started ringing for Cowell and he came back to the panel permanently, bringing Alesha Dixon and David Walliams with him.
Thanks to some dancing dogs, a bit of fierce competition with The Voice UK and a slick, funny, happy panel, it was the best series of BGT since Susan Boyle warbled her way into the nation's hearts.
Could the return of Simon Cowell to the UK X Factor have a similar impact? Ratings are down on X Factor UK. Strictly is beating it every weekend.
Louis looks more bored than a man locked in a prison cell with only Westlife records playing. Gary doesn't look like he can be arsed after his best act was ludicrously thrown out in week one. Tulisa looks permanently annoyed and angry at the world. Only Nicole Scherzinger has offered us any sort of glimpse of fun and humour, but there's only so far a Pussycat Doll thrusting her crotch and flashing her legs can get you.
Maybe King Cowell coming back to town could be the rocket up the bums that the panel needs.
Meanwhile, the acts are too humdrum and identikit to ones from previous series. Even Rylan Clark - the supposed wacky act - feels like he's rehashing something we've seen Chico, Wagner, Jedward, Kitty and Waissel do before. And let's not even get started on the predictable (barely existent) theme weeks and song choices.
Is there anything that Cowell could do to switch this slide in quality around?
He's busy trying to turn X Factor USA into a hit at the moment and is losing his own ratings battle over there with The Voice USA. Would he have the time, energy and more importantly desire to do both shows at once? Bruno and Len do Strictly and Dancing with the Stars in the UK and US, but it's a tough ask.
The X Factor turns 10 next year and some people have suggested it could be the talent show's last hurrah. Surely it would be wrong for the series to bow out without one final cheeky wink, tug on those high-waisted trousers and humiliating put-down from the man who started it all?
Should Simon Cowell come back to X Factor UK? Can the ratings slide be stopped or is the show format growing tired? Let us know!