Career success for an engineer or an IT professional involves more than just technical knowledge. To do really well you must be able to: (1) become expert and remain expert in your field; (2) successfully get jobs that are being offered; (3)understand what is really needed and wanted to get ahead where you are working; (4) plan your work so that it can get done; (5) manage your work so that it actually gets done; and (6) let people know about what you have done and what you could do in the future. The first step is a weak point for some, particularly remaining expert in a technical field. Self-directed study is essential to expand as a professional. One resource to assist anyone who wants to improve on their ability to study is the Technology of Study booklet. I recommend it to anyone.
Bob