Your sales force needs supporting materials for client visits, and as leave-behinds. Will anyone ever read these things? To improve the odds, they should be short,
Structured as a guide to the issues a purchaser might miss in the selection of this complex product type, the piece guides discussion, and then is left as reference.
Basic rule: a skim of just the headings should give your prospect the gist of the offering. This is one of several sell sheets for a documentation company, this one outlining its consulting process.
Again, the headings tell the story, and the text fills in the details. This is an initial version, not a final design, but this better represents what I bring to the table: clarity and focus.