#1 Let Kurt Angle go out with a defeat

Kurt Angle said goodbye to the ring in the most Kurt Angle way possible. The legendary superstar took one last fall to put over a villainous talent that Raw has been trying to promote for a long time.
While Angle would have been the one wanting to put over Corbin in his last match, WWE should have booked him to win, no matter what, against any opponent.
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The reason for that is that Angle has done great service to wrestling for over two decades, and deserved to have a final great WrestleMania moment before bowing out. As for Corbin, he lost to The Demon in a matter of seconds at SummerSlam 2018 and a one-armed Braun Strowman a few months ago, and still gets to be Raw’s biggest villain.
Therefore, another loss would not have hurt Corbin at all and only helped the crowd hate him even more while letting Angle go out in style.