system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 The referee problem in the NFL.

I watch very little football, but I hear people around me constantly complaining about "replacement referees". What's going on with NFL officiating?
gpt
the NFL referees are in a union. their contract is up, and it is time to renegotiate. the referees want a retirement plan. the NFL executives said no. furthermore, the NFL executives said 'until you agree to OUR terms, we will use replacement referees. so you better do as we say."

the replacement referees are not trained well, and not experienced enough. they are making lots and lots of mistakes in games, mistakes which are effecting the results.