I had a very young and inexperienced HS team this year. In order to get them up to speed and slow the game down for them. I put throwdown bases 35 feet apart, split the team in two, put half in the field and the other half baserunning while I bunted and hit balls. Then they would switch after 3 outs and we'd do it again. In other words, they scrimmaged each other while I was the DH for both teams. I'm a big fan of drills/things that work on multiple fundamentals simultaneously. A nice byproduct of this is teaching the girls aggressive baserunning and working on game situations in a very fast paced environment. The girls had so much fun with this one that they asked to do it at least twice a week.