Listen, I think Mariah Carey did a wonderful job in Precious: Based on the Novel Push by Sapphire. As a mustachioed social worker who doesn’t believe in make-up or showering, it was convincing and nothing short of strong. It reminded me of Cameron Diaz in Being John Malkovich and Charlize Theron in Monster. And frankly, if it wasn’t for Mo’Nique and Paula Patton’s performances, she might be getting a bit more award consideration in the supporting actress column. But, BUT, …