A few comments:
People like attribute a success- this should be 'to attribute' and you should use the definite article as each organisation will have specific success or failure.
Some people think that leadership is an inherent talent, more believe it- where do you get your proportions from?
post-matally- This doesn't work at all for me. Post-natal is related to giving birth and the immediate period after it and doesn't extend to later in life