No insult intended:
For future reference, when I use the term "cowboy" , I am using in in the context of vernacular common to people working in engineering fields.

Definition: People or Persons who defy common practice, engineering data and historical data when designing or fabricating something, due to sheer laziness or some strange desire to fight a perceived "establishment". Typically persons in this category have an inability to fill out paperwork, and suffer from extreme cases of selective hearing ( especially in the presence of field experts ). The decisions made by such persons mentioned above as "cowboys" are referred to as being "shot from the hip".

No implied connection is made to the above mentioned "cowboys" of the engineering vernacular set, and of persons who live, or have lived in what is generally thought of as the "western" half of the USA from the middle 1800's to the 1960's, working cattle, getting saddle sores and allowing John Wayne to earn a sizeable fortune.