The network has always supported the troubled star of the show in the past, but according to PopEater, a source has revealed that talks are taking place to work out if the series could have a future without him.
'CBS stock has been taking a beating during Charlie's recent meltdown,' a TV insider told the website. 'Charlie has become too big a risk to not have a backup plan in case he has another incident and forces production to be shut down.
'The big question is can the show survive without Charlie. Would the show take a big hit? Yes, but if they found the right person to replace him it would survive and maybe even grow.'
CBS declined to comment.