3rd and 1

Why is it 9/10 times in road to glory when I hand it okk to my CPU RB on 3rd and 1 or shorter does the CPU back get tackled by the CPU defense 3-4 yards behind the line. Like literally 9/10 times this happens. No matter how on fire the back is or how well the line plays almost never convert a 3rd and short by running to the CPU back. Do you even care anymore EA?