The captain of a cricket team is responsible for all decisions concerning team strategy and tactics. This includes:
Calling the coin toss and, if won, deciding which side will bat first.
Determining the the batting order, and any changes to it during the match.
Providing tactical advice to batsmen at available opportunities.
Declaring the innings closed.
Instructing fielders where they should stand in the field.
Choosing bowlers for each over.
Providing tactical advice to bowlers on what sort of balls to bowl.
The captain is also responsible for the discipline of his team, and answerable for any unfair play done by any of them.
In baseball, coaches take an active part in the game, advising players what to do and making decisions that affect play.In cricket, coaches take no part whatsoever in the play of the game itself.
Many professional cricket teams employ a coach. The coach is responsible for:
Implementing training and fitness routines for the players.
Advising players on points of bowling, batting, or fielding technique.
Advising players on weak technical points of opposition players and how they might be exploited.
Unlike most profesional sports, the coach is not responsible for advising the players on
match strategy or making any decisions relevant to the actual play of the game. All of that advice and those decisions
are the sole responsibility of the captain.