I can translate.
The overall message is:
"I have recognised that there is a recession on. Therefore senior officers can't just waltz into good jobs in industry, they have to demonstrate that they have the skills to be of use to industry. Therefore I have learnt to speak executive gob-****e just like industry and will get the best job. So yah-sucks-boo to the rest of you"
Picking out the highlighted text:
The lag between introducing the enabling changes and achieving benefits creates a major obstacle that is exacerbated by the wide range of stakeholders involved
means: "I've done a brilliant job, the reason it doesn't seem to have helped is because I am surrounded by lots of plebs and luddites"
“Embedding these changes, such that they become the normal way of working, requires senior leaders to demonstrate their own commitment to the new behaviours”
means: "Some of these plebs and luddites out-rank me."
Anything else you want help on?