Yes. It is the only major professional sport that requires the manager (coach) to dress the same as the players.
The Negro League Baseball Team who had the initials BB on their uniforms were the Birmingham Black Barons
Rawlings manufactures the majority of uniforms for teams in Major League Baseball. I do not think that all teams contract Rawlings for uniforms, but I believe that they do have roughly 70% of teams using their uniforms and equipment.
Yes
None
Themselves
The players get new uniforms for each game!
they all use a bat, a baseball, 9 positions, a coach, a field, bases, and uniforms
They wear majestic uniforms on the field
Oakland Athletics
The 1916 Cleveland Indians who had the number on the left sleeve of home uniforms.
The Brewers.
The MLB All Star game managers are the managers of the teams that went to the previous World Series.