Getting the call right

[SamG]

There's no specific play here, and I'm just a fan who's interested in the answer.

There's been a couple posts recently about "backing up your partner". It SEEMS like the thought process is to not say anything if you see a wrong call made, sometimes even if questioned by a coach. Now, maybe that's the way the rules are set up.

But I don't understand why the rules are set up that way. Let's be honest... EVERYONE makes mistakes at times. Why not be able to correct that mistake? It happens in football... one official sees a catch, but another official (with a different angle) saw the receivers foot out of bounds. They get together and make the right call (most of the time).

What's strange is there's at least one instance a PU will ask a BU what he saw... a check swing. So why not do the same on some "bang bang" plays?

I'm trying to just start a discussion, not an argument, I swear.