I agree with all of this. If we don't see WR/TE/OL in the first 2 rounds I don't see how we get through the playoffs.
Harty and Sherfield seem like okay pieces. McGovern is fine. Harris is a smart signing. Maybe okay pieces is enough to make the offense run much more smoothly, but I don't want to bet it on it. Getting a 1B WR means teams have to shift gameplans, because right now stopping Diggs is a surefire way to frustrate the offense.