Dropping 10 in Coverage and still getting pressure

When in online h2h a player drops 9 or 10 into coverage, the O-line just sits around and watches while others 1v1.  I shouldn't have to slide or guess who to block when they're rushing 1 freaking player.  This stupid cheese is so effective and it's not realistic at all.  Just make the o-line freaking block somebody instead of constantly losing 5v1 or 5v2