Hi James,
Thanks for the answer. Let me elaborate the question:
Generally homepage will be optimised and expected to rank for "primary keyword". And the other landing pages are optimised and expected for "secondary keywords".
So, now let's take homepage is ranking well for "primary keyword"; does this impact on improving rankings of other landing pages for "secondary keywords"? And vice versa....if couple of landing pages are ranking well for "secondary keywords"; does this impact on improving ranking of homepage?
I am just wondering about it. Because I doubt if website (homepage) is not ranking well, will this push other ranking pages little down?