In summary, the article suggests that Judicious types hold the attitude that their initial assumptions about something will change whereas Decisive types have the attitude that their initial assumptions should match their conclusions.
Likewise, Merry types, when put to action, do not end up with a result that they planned on having whereas Serious types want to get a result they planned on having.
This explains, for example:
Why some Delta STs might make good mechanics because investigating a piece of machinery could change one's own assumptions about what was going on with it and the end result is clear.
Beta types might find the realm of politics quite fascinating because one holds on to firmly held beliefs and principles and asserts them. What might happen from expressing your viewpoints, though, is up in the air...
An Alpha SF might make a good worker in childcare because he or she relates well to young children that are always in a state of discovery and creating things and he or she learns from them that way.
For Gamma types, running a business requires the attitude to uphold one's beliefs and get expected results well-after the initial stage.
Alphas like to discover to create.
Betas like to have knowledge to create.
Gammas like to have knowledge to produce.
Deltas like to discover to produce.