One other thought - the reason that Gupta fell on his sword was to save his friends, the Clintons, from having to give sworn testimony in the shareholder lawsuits. That would have opened a big can of worms.
My mother worked for this guy. ( A company he bought up that was big) He personally would show up for “inspection” 1-2 times a year. She thought he was a nice but real strict guy. I ‘m trying to remember what they called him. I think it was Uncle Vin. My impression from her retelling of his visits were that they were more like white glove tests.
Plus, if the speculation about Obama choosing Her Heinous is correct, they can use their favorite "old news" dismissal when Gupta's name comes up: "That's old news. He's no longer running that company. How many other former CEOs did you want to discuss today while people are starving and kids are going without healthcare?"