This is what my highschool does....
Day 1- towel drill, long toss, run 30 min, lift lower body
Day 2- towel drill, long toss, 30 bullpen pitches, run 14 poles, lift upperbody and abs
Day 3- Runs 10 poles, long toss, towel drill, 5 minutes touch and feel pitching
Day 4- 12 90 ft sprints, long toss, towel drill
Day 5- Pitch Gameday
This is the way my highschool does it...and the coaches are pretty good when it comes to lifting and running and that kind of stuff. Its hard work and a lot of running but it paid off for me.