Out of curiosity, I went to the 9 Things Diagnostic site mentioned near the end of that article. I forced myself to go through the first of the 9 'criteria' diagnostics, looked briefly over the second one and quit.

"Success" there seems to be defined by achieving goals one has set. It 'encourages' the reader to have a concrete clear goal in mind, and each step planned out, track your progress, positive thinking, strengthen your willpower & resolve, etc. etc.

Basically...be more Strategic rather than Tactical, and more Decisive rather than Judicious. This is the realm of Se/Ni Extroverts.
Also, possibly more Obstinate rather than Yielding....leaning towards FeNi & SeFi.