Monday Morning Quarterbacking

Meaning 1
For the football term "quarterback" go to that idiom. Fans replaying a play after the fact.
Sentence 1
Tom Brady, the quarterback of the New England Patriots, threw a pass for a touchdown but the play was reviewed by news media later.
Meaning 2
To decide what could have happened after the fact. Hindsight.
Sentence 2
Avid football fans frequently are "Monday morning quarterbacks," reviewing their teams' play.