Manage/Technical

General management and business acumen training courses are widely available and offered in many different contexts.  Technical training is more specialised, has a smaller audience, and is less profitable.

Management and business acumen courses do not train technical workers in the skills needed to interpret specifications, use judgement when technical information is incomplete, or application of a technical theory to arrive at practical solutions. 

These judgement skills for technical topics are difficult to teach, especially to workers who are years into their career.  Also, it is difficult to measure the knowledge achieved in the classroom. Experience is a better teacher.