What is the meaning of [If two men ride on a horse, one must ride behind]

There cannot be two leaders in any enterprise. The man riding behind must
leave it to the man in front to guide the horse. Similarly, on a tandem the
man in front steers the machine and applies the brakes.

##### See also:

* Don’t speak to the man at the wheel
* He that cannot obey cannot command
* It needs more skill than I can tell to play the second fiddle well
* Through obedience learn to command