Generally yes, I'd imagine its far easier to train a front of house then it is a chef
If Ray wanted someone with a proven track record in the catering business, be it cocktails, restaurants etc, then that's fine - but don't try and peddle a TV show on the basis that its a genuine competition, when it was blantently fixed from day 1. JJ and whatshisface were the only contestants with any sort of catering background, got kept in when they really should have gone, managed to stuff up a requested desert and serve a cocktail instead and ended up winning.
If Ray wanted to go into partnership with them, fine, do a TV show about training up JJ to be a chef, just don't try and fool the viewers that this was anything else but a fixed competition and a several week advert for whatever business they do come up with (although that's all gone very quiet)