My only concern is that indiscriminate tinkering messes with player's heads at a personal level. Some of those players may not be able to recover from it. When it comes time for the coach to ask those players to give it all...they may not respond, or be able to respond.
Obviously I believe that coaches have a lot of responsibility. Maybe it's just a thankless job...
Obviously I believe that coaches have a lot of responsibility. Maybe it's just a thankless job...