Can We Have The NFL Replacements Back, Please?

[jTheUmp]

Football officiating 101:
If you don't see the player on the ground (and, in the NFL's case, down by contact) AND in possession of the ball, you DO NOT blow your whistle.

Also, all turnovers and scoring plays are automatically reviewed... as a consequence, NFL officials (and D1 college officials) are taught that "if in doubt, it's a fumble/interception/turnover/touchdown"... because the replay folks can (and will) come in and overturn the play if necessary.