Difference between the two organizations(according to the book)
To me personally, I think both organizations are very similar in a lot of ways; and there is absolutely no reason to establish the second one when the operation of the first one could have be modified.
There is definitely shady reason behind the implementation of the second entity.
Think about it.
This is the real difference between the two:
ICPC is an organization that understands democracy and embraces respect for the law. This organization focuses on a group concept and can not be easily manipulated by the president. In-fact 85% of their members are older, well educated, and experienced Nigerian citizens. The credibility of each of these members is untouchable.
Believe it or not, the president is well aware that this group of people will not tolerate being used as the war gear or political fighting tool.
And I think this is the main reason why the second organization was quickly established.
EFCC on the other hand is an organization that operates under the umbrella (concept) of a single entity. It is also known that the organization is directly being controlled and monitored by the president. The members are pretty younger and full of energy, but can also be easily subjugated.
As bright as the intention or the vision of this organization appears to be, it is not uncommon for one to doubt their credibility and operational style.