I say scrap the whole dang thing. All of it.
If you replay zealots can't without it, then I maybe can be convinced where each team gets two opportunities to review a play. Two and only two. Whatever they want to review, catch, fumble, ball spots,, etc...
My whole thing with replay isn't that it hardly ever works how it was intended. It has taken all the excitement out of big plays. And now any type of big play is followed by 5 minutes of,,, did he ,, didn't he,,,, blah blah,,, just kills the game flow.
Not to mention the refs just use it as a crutch now and basically aren't officiating the game.
One more add no more reviewing pass interference. too objective, plus they never changed a call all season anyway. scrap it.