From the news section of the MRX website,
Canadian Football League
In April 2012 the Canadian Football League (CFL) upgraded their main league site to our new CMS6 platform. CMS6 provides CFL teams and league staff with custom creation of media intensive news articles and pages and the ability to create and distribute videos and photo galleries. A core part of CMS6 is the media library that allows users to tag and search videos and photos and embed them into news articles and other related pages within a site.
From the sounds of things, the CFL itself has the power to manage the content on its website. It doesn't say "update game stats" on there, but it wouldn't make sense if the CFL could do all the things listed there yet weren't able upload a simple file.