When changing offense and defense, what is the best amount of time to practice? 25? 30? I believe I read a while back that after 25 you start getting diminishing returns. Is this true? I know there's a certain amount who believe you should play the old offense and defense until your team learns the new offense better, but I only have 6 players who played the old system, and they're not all starting. I also recruited a couple of JUCOs to play the new system. What do you guys suggest?