If he's that poor a salesman, getting fired would be a good thing. He needs another career. I've had a salesman who did absolutely nothing to sell or demo the car I was looking at. The only thing he mentioned spontaneously was the roomy trunk. The car was loaded with new technology I kept touching inquisitively and he never picked up the cue to explain what I was looking at.
A few months later his replacement called me, following up on his leads since he didn't work there any more.
I'd be a lousy salesperson too. I don't like being pressured and I couldn't pressure anyone else into a sale.
Think good thoughts about him, that he found a job he was more suited for.
Time to build a bigger bridge.