It's called Training Camp. Each one, teach one. There are billions of little ways to prepare. Biglock shared his way by way of Mike Pratt. Mike Robertson shared his way. Here's mine:

I setup a Pass Offense starting at my 20 and work my way down the field only IF I can hit all 5 eligibles whether they are covered or not, engaged or not. I agree that an actual pass rush and OL/DL in the way is key as well as using a :10 second clock per throw. I only use one football - have to try the multiple balls for Quick Draw McGraw type action and do them all in :20 seconds or less. See, even I learned a lil sumthin' sumthin'!!!

Each one, teach one. Here's 3 and 4 different ways to do it.