In my opinion, they need to take the entire offseason and re-establish what is a catch. Time and time again I see plays where a ball is clearly caught and called a catch on the field and then someone from somewhere calls it incomplete.
“(Eifert is) hit just as his second foot hits the ground. To become a runner you got have the ball longer than two feet down, you got to have to have the ball long enough to do something with it, avoid contact, ward off an opponent,” Blandino said. “And if it’s all that one action and he’s going to the ground, even if he reaches, the requirement is to hold on to the ball when he lands and he didn’t and that’s what made it incomplete.” – Report by Dan Hanzus
More to this here: Tyler Eifert: I don’t know if anyone knows catch rule
