I know most people’s gut reaction will be the fumbles, but to me those are psychological from his demoted role, so far as being used as a returner.
Gibson is a former receiver, but we’ve barely used his catching ability to make him a dual threat. I remember Gruden used Chris Thompson as a great complement when we had Garçon/Davis/DJax. His best years were ‘16 and ‘17 when he produced 700+ and 800+ all purpose yards respectively.
Gibson and Robison have shown their abilities as pass catchers. They don’t need to be Alvin Kamara, but hopefully EB is able to put 2 weeks of good play calling together while utilizing the screen/short game. Just my 2 cents
He’s just not very good.