I’ve been thinking about that, but it would take a delegate shortfall heading into the convention to even make that a possibility.
I honestly believe that if she were to throw her hat into the ring now, that she would quickly build enough momentum to carry her over the finish line to a win. Of course, she also has to want it, and as of right now, there's no indication from her that she does.
Ike was also a reluctant candidate. He finally had to be drafted at the convention to convince him to run.