Late in the game pass prevent defense?

I wouldn't recomend a true cover 2 zone, unless you teach your corners to pattern read and go deep with the #1 receiver if #2 also goes deep. Cover 4 is a better alternative if they are going deep. 3 Deep is OK versus a pro set with 2 backs, but if the spread it out and can send 4 deep, it's not so great. I like the option of going man underneath with 2 safeties free over the top to help.