What is the origin of the idiom "put the saddle on the right horse" and when to use it?

The exact origin of the idiom "put the saddle on the right horse" is unclear, as it has been in use for a considerable period of time. The phrase is believed to have its roots in horseback riding and equestrian practices. In the context of horse riding, it is crucial to place the saddle on the correct horse to ensure a comfortable and safe ride. It is used in various contexts and occasions where there is a need to emphasize the importance of assigning tasks or responsibilities to the most suitable individuals.