Accordion widgets hide ancillary content, lead readers through step-by-step process instructions, force interaction by info-seeking readers, usually fail to print, and can be inaccessible to screenreaders and assistive tech.
If we build it, they will come. Or not. People use their favourite tools and select them for personal reasons, even inside the firewall. Intranet features may not be used by the majority of people, and that's OK.
Feeling overwhelmed by negative perceptions of your intranet? Tired of the big projects running out of steam and grinding to a halt? Seek a small success and watch it snowball.