re: Assuming that Jalen is QB1 going into this season, how do you help him?

It's not about stats, it's about what the player showcases in terms of QB development. Can Milroe go through progressions like Richardson? Can he make pre-snap reads? Can he adjust the line and/or hot route? What does his tape show us? An inability to throw over the middle and throw with anticipation?

Again, this is why Josh Allen was a top 10 pick despite having a 56% completion rate. This is why 5'11 Bryce Young went #1 overall over a 6'4 CJ Stroud. You can throw for 4,000 yards out of Mike Leach's offense and it means absolutely nothing if your tape is showing issues like this

Congratulations, Milroe has a live arm. That means absolutely nothing if he's unable to use it consistently. Richardson's athletic ceiling was sky high and the general opinion was his inaccuracy was fixable. Being a year four quarterback and unable to do rudimentary tasks, is not going to be viewed anywhere the same as sloppy footwork.