If you want to become a great coach for your baseball team, you need to bear in mind that there are a lot of things you need to prepare and do for your team.
First, do not only tell what needs to be done. You have to show them how exactly it is done for them to remember what to really do. People tend to learn more if they see how something is done rather than lecturing them on and on about strategies, stats and tricks. You need to show them for you to be an effective coach.
Second, emphasize and empathize to your players. Emphasize the important points for them to be better players and empathize for their efforts. They learn and eventually your team will win. It is a win-win situation where you and your team will truly work hard together to achieve one goal and it is not just about winning. It is all about character and better yet it is all about how you deal things together for you to improve. And for people to notice your improvement, you need to show it not just tell it because people will believe you if they see it.
Third, do not be groggy. Personally, I do not like coaches who do not show care and even concern to his players. Maybe not only me but everybody does, who would like someone who is making everyone jump in nervousness every time he is around? Who would like someone who does not know the word care and concern? If ever you meet this paragon you have to introduce him to most of us who hates coaches like that. You should not bark orders unto your players, remember it is a team and teams work well together.
Fourth, whatever happens during and after the game, show your sportsmanship. Lead your team to a healthy acceptance that perhaps it was not at all their day or maybe even season. Teach them how to become one by being their first example and model. If you show this to your player, you will earn their trust and their respect much better than they actually gave you before. You need to be a good sport not only in winning but also in losing. Emboss into all your player's minds that they did well and did everything they can on the field but tell them there are always better teams out there. And that losing is bound to happen.
Fifth, sometimes being a coach is a stressful and very daunting task but it does not necessarily mean you have to be. Think about how fun it can be working together with your team. Just go out there and be together with them, show them how sports can be very fun even though it is their only career around. You do not have to be scary serious about the whole thing. Teach your players the word fun by instilling the word to yourself first and that is just how it is.