I think you're better off hammering the consistent message (that Pioli is the root of fan discontent) home and letting the rest take care of itself.
ALL I WANT FOR XMAS IS A NEW GM - SOC
If Pioli is already as good as gone, you still win.
"I'll see you guys in New York." ISIS Caliph Abu Bakr al-Baghdadi to US military personnel upon his release from US custody at Camp Bucca in Iraq during Obama's first year in office.