I am charge of several SharePoint environments. Currently, there are people who support and build solutions with SharePoint for business units, like me--and others, which I have no jurisdiction over in other departments and business units, that will build a solution with no best practice or programming mindset in place. It's analogous to putting duct tape on airplane wings. Things they have been doing are cringe-worthy to look at.
How do I let these users know that I have extensive experience with SharePoint without making it seem like I am telling them how to do their job--of which I have no authority to?