It also has changed in college where the team atmosphere has brought out some different behavior by players and fans. Unless it is something minor, like the ball toss, you wait until you have time to work on it. Mechanical flaws can take two, three or four weeks of practice. I prefer to keep things simple when a match is in progress. Probably the biggest thing I might do is note an opponent's tendencies and suggest a different approach to my player.
Tennis seems like such an individual sport.
You see some players with the same skills. Some prefer doubles while others much prefer singles. You can't substitute in tennis, and the ones who do well are the ones who enjoy the battle. We're no longer a new program, and it's time to be evaluated with everyone else. I think we are ready to field a team that is consistently among the best in the nation.