Two Block Charge Calls (Videos)

[OKREF]

Both PC.

On the second one. I've been told on a play like this, that the C gets first crack. It came from their primary, and the lead is on the opposite side of the lane. We've been told if it comes from the trail then the lead can take it.

[Zoochy]

This is why we should always have a pregame discussion. It appears that officials have a difference of opinions as who has this call. The Center or the Lead official.
My only 2 cents is that if the Center official takes this call, then s/he should step a little closer to the play. This official is almost at the intersection of the top of the key extended and sideline.