UT Assistant Track Coach and Two-Time Olympian, Ken Harden takes athletes through drills that prepare athletes to sprint properly. Look to YouTube for more Mix-X Pollination productions for other sprint philosophy.
The discussion of "running on the toes" versus "dorsiflexion" can help athletes and coaches alike understand how to move like an athlete.
Bishop Alemany HS, Mission Hills, CA Head Coach, Michael Wellington put together this video with drills for the intermediate hurdler. This is a one-stop shop for intermediate hurdlers.
More drills from Coach Wellington that addresses arm movement, lead leg, and trail leg drills.
IMG Academy, Bradenton, FL, put this together for young sprinters to understand how to set the blocks.
Whether out of the blocks, in a 4 or 3 point stance, or standing, runners should understand the physics behind the drive phase in order to get up to maximal velocity most efficiently and with the most power.
Coach Wellington has a lot of techniques and exercises that we already incorporate into our sprint training. This is a good video to provide coaches and athletes some additional ideas and, frankly, validation that what you're doing is going to continue paying off.
Some more great content from Coach Wellington. You already do most of these, but we're just putting these here for your reference in the event you're looking for something to do in the off-season or by yourself.