Unless the main event is a top top fight , then you really need 3-4 solid fights,for example I think you could get away with callum Smith Rocky , Selby Warrington, crolla Mitchell and Josh Briggs.
It is difficult but I think fans just want competitive fights. One sided stacked cards with the main event being decent is not enough for PPV.
Brook v khan Quigg v Galahad Murray v macklin Joshua v price Cardle vs matthews Put Warrington and burns on bill aswell sumwher to fill up fights
Brook v Khan Froch v DeGale Selby V Warrington Crolla V Mitchell Cleverly V Bellew All of the above apart from Khan are with Matchroom so these fights could be made.