The OL in the game is a joke all together, your OLs AI is awful, too many times do blockers either stand around and legit just do nothing or go and do something random that they aren't supposed to be doing. The game is pretty broken gameplay wise overall. Defensive AI is really bad at times too, I notice a lot of the time when pursuing a ball carrier they will actually work their way to where they are behind the ball carrier and chasing them from behind instead of taking the logical angles that make sense. And of course defensive players like in NCAA 14 suddenly have comical vertical leaps in pass defense allowing for ridiculous pass break ups or INTs. Just a ton of incredibly frustrating shit due to the game being broken, it almost makes it not playable to me. I understand it's a video game and doesn't have to be just like real life, but stuff like these just feels so cheap when it happens while playing. Haven't tried playing online yet but I can imagine people have already figure out ways to exploit these flaws to extreme advantage too which will make trying to play random online games very annoying.
A lot of the difficulty is due to the straight up broken shit, IMO. I'd say maybe they can fix these things with patches, but its EA so they will make it worse before it gets better.