I am not saying Martinez doesn't have an issue with throwing the ball high over the middle, but one of the big games that people remember JD and Wandale getting hit hard after catching high balls over the middle was the Illinois game in 2019. Illinois plays mainly Cover-2 zone on defense, with dropping LB's. One major weak spot in the zone is down the middle, but forces the QB to pass over the LB's and in front of the safeties. It's a very tough throw to make, and can often time lead the WR vulnerable to a big hit from the closing safeties. However, NU was very strong at attacking that defense time and time again last year, even if it meant the JD and Wandale getting hit hard after making a catch.