Bring in top class wrestlers who are very physically strong and give Conor an ass whopping and wrestle him to death over and over and over. Would offer a guy like Usman lots of cash to come over and help, and remove that wilt and quit inside Conor.
Get rid of all the punching bags in SBG who don't fight back, just stand there and take it.
Ban all sparring sessions and grappling sessions between Conor and any fighter in SBG, because they are all cans and don't fight back against him. so he will never learn, and will keep wilting and quitting everytime the fight is not going his way and someone actually starts fighting back