Avoid how? He ran exactly as CD did.
The difference is, the defender on Ferguson's side went underneath. The guy on Lamb's side hesistated then tried to go over the top and ran into Lamb.
Both Lamb and Ferguson ran toward the defender and then break upfield at the end. They did the exact same thing. Neither can initiate contact, so they can't just run into them. But Ferguson cannot control the defender and if he chooses to go high or low.
It's the defender who goes into Lamb, not the other way around. So, bow does Ferguson make the defender play it as poorly as the guy on the other side?