Pulp Fiction question?

What do you think Marsellus would have done with Marvin if Vincent hadnt shot him? In the scene in the club, after Vincent and Butch have their little face off, Marsellus calls over Vincent. They hug and you can hear Vincent mutter a sorry and something else. Then Marsellus replies with a "Dont worry about it". Presumably this was referring to the accidental shooting of Marvin. I have always been of the mind that Marsellus was kind of on the fence about getting rid of Marvin himself and was just a tad relieved that Vincent unintentionally solved this problem for him. Like, if Marvin made it to Marsellus alive it would have taken something really good from him to stay that way. 

What is your take on this unsolved question?