I’ve only coached for 2 seasons, but here’s my take.
background – I coach HS girls in WI, and ran the 400 in college.
Year 1 – went pretty much long-short, that being the way I was trained. I didn’t have a lot of coaching knowledge, I mainly used what I’d learned through my own training. I’d say that the training ended up being somewhat in the Hart model, with more tempo 200s, and beginning speed work later in the season than I should have.
Year 2 – after spending the summer both reading, and becoming more educated about coaching, went more in the direction of short-long. I realized how some of what I’d done in year 1 was wrong, and implemented accel from the start of the season. With 2 meets per week over the last 2 months of the season though, looking back I feel I didn’t get enough tempo work done for the 200/400 girls.
Results – In year 1, I had better 200/400 runners. The 4×1 and 100M suffered from a lack of accel/speed work, but the tempo focus certainly allowed for more quality long sprinters. In year 2, I had 100M runners. The 4×1 placed 2nd in conference, and we placed 2 in the top 5 in the 100M. Unfortunately, the 200 and 400 suffered. Not enough tempo work meant that 2 of the girls who had run on the 4×4 in year 1 ran 2-4 seconds slower this year than last.
What does this mean for changing training stimulus? Probably not that much, as I feel like I need to set up a training plan less on either extreme.