Was Brad Pitt's '50 feet of crap' line in Moneyball a reference to Jennifer Aniston's in Friends?

In Friends S02E01 (from 1995), Rachel is sad because Ross has a new girlfriend, as she is discussing with Joey:

Joey: How're you doing?

Rachel: I'm okay.

Joey: Ooh, that bad, huh?

Rachel: What?

Joey: Look, I can sense when women are depressed and vulnerable. It's one of my gifts.

Rachel: When I saw him get off that plane with her, I really thought I hit rock bottom. But today, it's like there's rock bottom, 50 feet of crap, then me.

Here Rachel uses the iconic '50 feet of crap' line.

Then in the 2011 movie Moneyball starring Brad Pitt, Billy (Brad Pitt) mentions:

BILLY: Okay, stop. The problem we're trying to solve is that this is an unfair game. There are rich teams, poor teams, 50 feet of crap and then there's us.

Was it purely coincidental for the movie writer to write the same line to be used by Jennifer's ex-husband, or was it an intentional reference to the Friends episode?

If it indeed was a reference, was Brad Pitt aware of the connection of this dialogue with his ex-wife?