That's a great start, the most important thing is to not give up on the run. Even if you lose 5 yards every time you try, atleast that way you have to keep the Defence honest!
I'm assuming your an Phi fan? So your probably running Westbrook so that's a plus. My problem was I was always in a hurry, which was retarded. Because I wasnt giving my Oline and FB enough time to set up blocks for me. You should give it a try, take it nice and slow and just let the play develop. Then once it does make 1 cut, and take it! A big part of the running game is being very decisive finding a hole and hitting it hard. If you try to hit a hole, then get indesisive and try to cut back, and run around like Barry Sanders use to do. It's not going to work out very well, your probably going to get tackled for a loss.
Just remember you cant break a 15 yard run every play. There is nothing wrong with a 2 or 3 yard run. 2 and 8 or 3 and 5. Beat's the hell out of 3 and long!!!