The bald guy in front of Al is still cued up after Al has already "failed" the test.
Bud stumbles over his lines and starts over when telling Al about his job. Likely due to the audience laughter.
Early on in the episode, when Al gets up off the couch to answer the phone, the boom mic can be clearly seen at the top right corner of the screen for a moment, before being quickly pulled out of the shot.