One of the easiest improvements, in a Blogger blog, is customising the "About Me" / "About Us" ("Contributors" / "Profile") gadget. The default gadget gets its content from the Blogger profile - and is edited, using the Blogger Profile Editor. With a team blog, the gadget changes to a list of team members - and this cannot be edited. But given 15 minutes, and some imagination, you can make your own Profile gadget.
What Blogger won't tell you