The only reason Wally is there is because he was poached from another company. If he moves, he will have to demand better coffee and a room with a view. As a last parting shot, he could write a letter to the CEO telling him that the PHB begged him to stay - the Zen of Wally...
Is Dilbert fault for weaponizing Topper; weaponizing Wally was the next obvious step.
And I am pretty sure that doesn´t work for PHB because of Geneva Convention or something.