After romo "spent some time studying the players", LOL....he is now on board. :)
Now, I still say you don't need to go with short passing game. As mentioned before 21 is rather low for STR, but my D3 team tosses it like crazy out the I and Trips and I do NOT focus on short passes. Its called "go deep or go home". The TECH and GI will keep the INTs acceptable (in my experience). My QBs always have very low INT numbers.
As you move up from D3 to D1A, it does seem that STR means more, but that may be more due to all the other attributes "leveling out", meaning that you really cannot sacrifice one attribute entirely just for another.