Cartson couldn't take being benched.

[IronEagle]

Some players might have used that incident as motivation to perform better for the team.

It appears Wentz saw it as a reason to throw a hissy fit to pout his way off the team.

https://www.nbcsports.com/philadelphia/eagles/carson-wentz-began-doubting-his-future-eagles-soon-he-got-benched

[art vandelay]

I get that every guy wants to play, but the Eagles gave him more than enough rope.

[Maniac]

McNabb never quit on the team.