Getting your team to participate in the SFI's Quarterly Leadership Challenge is easy. Firstly, you must have been participating yourself and must have won the badge, which will be displaying on your SFI home page, as it is important for you to lead by example. You must also update your leadership page and refer them to the page all the time you send out weekly team mail. Also let them know that it put them on a right starting point in SFI as they are adequately rewarded by SFI. I hope this helps