The overwhelming consensus on NCAA '14 is that user rushing is nearly brokenly easy. I've played this game since release nearly non-stop and I still maintain that passing is even easier.
I usually run a run-heavy spread option attack and my QBs still usually pass for 180-220/game w/ 8 minute quarters (I actually have my sliders so difficult that I almost never average 200 rushing YPG as a team so I have to pass the ball more than I'd like).
I tried something different in a dynasty and ran a Run n Shoot offense. The numbers were so gaudy that I actually had to play on 7 minute quarters because 8 was too much. Still on 7 minute quarters my QBs put up these YPG for me:
RnS passing.PNG
I really like plays with lots of different routes in them so I have lots of options. Instead of calling a "slants" play with 4 slant routes I'd much rather call a play with a streak on the right, out on the right slot, slant on the left slot and curl on the left flanker.
The most important thing is reading the D presnap. Are they in man or zone? Is it cover 1, 2, 3, or 4? Knowing this lets you know which routes are more likely to be open.
I mostly throw short passes (so my QB is almost always last in the conference for YPC), but will take chances down the field when the opportunity presents itself. This is obviously best when you've got speed somewhere. I usually have a wide range of speed on my WRs and I prefer my burners to be on the outside and my taller, slower guys in the slot (I think most people prefer the opposite). With the correct presnap read you know that the streak you have on the outside could be a huge gain if your WR can get by the pressing CB and you drop it in before the safety can get there.
Most of my deep passes (and I usually get a couple per game) come from my burners streaking down the sideline. It should be pretty easy to figure who my 2 fastest (95+ SPD) receivers were in 2018:
receivers.PNG
You see to have the most trouble w/ the deep ball and, as I said, streaking down the sideline are my biggest gainers followed by posts over the middle and corner routes. Any of those can turn into huge gains.
Also, of utmost importance, don't be afraid to dump the ball off to your checkdown or a short route. A 2-5 yard completion is always better than a sack or incompletion.