Allegedly, power of PR transition is splitted to number of links, same for outgoing and inner links, but who knows…
I think, it depends on size and structure of your site. You are fine, if you have a site with thousands of quality content pages and 90+ Inner links from your homepage linked to your main pages or categories.
But, small site with few ten pages and where all these pages are linked from homepage, that’s just desaturation of your potential verticals.