I am currently engaged in a process of attempted personal reprogramming to try and understand how to maximise my potential as a manager of people. Some may have read Stephen Covey's 7 habits of highly effective people, but to be honest I dont know that you are missing too much if you gave it a miss. If you have read it or are a self help/self improvement book junky then you will appreciate the importance he places on developing long term sustainable "habits" of behaviour that can support your personal achievements...
Reading about these habits it sounds like IM training all over again and there are clear parallels between the habits required to achieve your life goals and those required to be successful in Ironman. The important factor amongst all of this is achieving life balance in any pursuit and to extend the good habits to all aspects of your life. This means it is no good to aspire to be the best at IM if you dont adopt all the behaviours that will maximise your potential. Its not just about completing the training schedule that you set for yourself (hopefully a realistic and achievable set of plans) although that in itself is a Major part of the schedule but it is also about the other stuff... What other stuff ?
Well when you finish your long sessions do you take care of sorting out your recovery food, get some rest, remember to clean the bike, log the details of your training session (where I am sure you monitored HR and effort). Do you do your stretches, core strength exercises, always do the full warm up, or do you go to hard when you should be going to easy, go to easy when you should be going hard. Had an injury and not done all the rehab you should have done, binned a session because bed was to comfy and the rain a bit wet. Probably not because you are all Ironman right!
The one thing you learn is that you need to get consistent, do the same thing again and again and slowly it gets better, faster, stronger. This is the habit that leads to successful IM racing. Without this basic habit you can forget about your build, peak, muscular endurance, taper and all the other details of IM racing. There are no shortcuts to consistency.... but also if you are to sustain and grow as a person or as an Ironman you need to apply these habits to your personal life; be consistent in your relationships, be consistent in your approach to work colleagues whether they are the boss or the office cleaner and most of all be consistent in your goals and personal expectations.