By Justin Barrasso McMahon took a risk appearing on ‘SmackDown’ last week, but the gamble paid off—for now. View the original article to see embedded media. SI.com’s Week in Wrestling is published every week and provides beneath the surface coverage of the business of pro wrestling. Last Friday, Vince McMahon was rolling the dice. Then Monday, he played with house money. Embroiled in his latest scandal, McMahon has stepped down as WWE CEO. While he remains the head of the creative team, it is a real possibility that his days as the head of the company are numbered. But McMahon reminded us that…