This is an extremely condensed, purely conceptual overview of the concentration training provided by the deceased Daniel P Brown (founder of the Pointing Out the Great Way Foundation).   

In  a concluding overview, the concepts are contrasted to those of Culadasa´s. "The Mind Illuminated", which is a 300-page compendium on concentration training. 

On Daniel P Brown: 

For many years, he provided this training to meditators, but also to executives as part of a performance excellence program. He saw concentration as a basic precondition for professional and meditative success.  

In the Buddhist "path" that he taught, concentration training preceded insight meditation (sometimes in the form of "open awareness meditation"): the more complex "mental operations" required for advanced meditation need the mental stability of concentration. 

The "subpath" of the Elephant Path is still taught by Daniel P Brown´s official successor Dustin diPerna,  who now continues the Pointing Out the Great Way under the name "Rigzin".