According to many people, Bill Clinton did help Hillary a lot in getting the position of the secretary of state while Obama held the presidency. This could certainly be possible. Considering the immense political power and support Bill Clinton possesses, he could have easily advocated for it if he wanted.
Perhaps he even did. Who knows? Claims like these are never proven but in all likelihood, they do seem to have some element of truth. Nevertheless, there is not much that can be done about it after all these years have passed. Clinton’s past is overshadowed by far more dodgy allegations.