You can make up for arm issues by getting the ball out sooner, but an underthrow is an underthrow. You didn't put it out far enough. You saw your receiver and your pass came up short.
All this timing stuff is just more excise making. Kind of like bringing up his freaking stats. He's not and never has been some borderline elite qb. He was and is John kitna in a better system. And btw, 4,000 yards is not some magical mark in today's NFL. Matt schaub is like 10th in passing yardage and everyone behind him had less attempts except bradford who barely had less.